Singh T. and Saratchandra B. (2004) Principles and Techniques of Silkworm Seed Production. Discovery Publishing House, New Delhi, India, pp. 342.
 Narasimharaju R., Govindan R., Ashoka J. and Rayar S.G. (1990) Genetic variability for quantitative traits in silkworm, Bombyx mori L. Entomon ,15, 197-201.
 Petkov N. (1981a) The possibility of forecasting the effectiveness of selecting lines of the silkworm, Bombyx mori based on weight and silk content of cocoons. Selskotopanska Nauka, 19, 92-96.
 Singh T., Chandrashekharaiah A. and Samson M.V. (1994) Selection strategies in relation to correlation and heritability in the silkworm, Bombyx mori (L). Bulletin of Sericultural Research, 5, 37- 41.
 Jayaswal K.P., Singh T. and Sen S.K. (1990) Correlation between some economic parameters and their application in silkworm breeding. Indian Silk, 29, 25 - 27.
 Sabhat A., Farooq M., Sofi A.M. and Malik M.A. (2009) Heritability, genetic advance and correlation analysis of some reproductive traits in silkworm, Bombyx mori L. Journal of Experimental Zoology, 12, 307-310.
 Kempthorne O. (1977) Status of Quantitative Genetic Theory. In Proceedings of International Conference on Quantitative Genetics (August 16-21, 1976), Iowa State University Press, pp. 719.
 Barker R.J. (1986) Selection indices in plant breeding. CRC Press, Inc. New York.
 Elston R.C. (1963) A weight-free index for the purpose of ranking or selection with respect to several traits at a time. Biometrics, 19, 85.
 Finney D.J. (1962) Genetics gains under three methods of selection. Genetical Research, 3, 417.
 Hajian E., Seidavi A. and Lavvaf A. (2011) Estimation of response to selection in three silkworm commercial pure lines with oval cocoons. Annals of Biological Research, 2, 215-225.
 Falconer D.S. (1981) Introduction to Quantitative Genetics - 2nd Edition, Longman Inc., New York
 Gimelfarb A. (1986) Multiplicative genotype-environmental interaction as a cause of reversed response to directional selection. Genetics, 114,333-343.
 Singh T. (1994) Correlation between pupal weight and fecundity in Bombyx mori (L). Annals of Entomology, 12, 5 - 7.
 Singh T., Bhat M.M. and Khan M.A. (2010) Silkworm Egg Science - Principles & Protocols. Daya Publishing House, New Delhi, India, pp. 277.
 Jayaswal K.P., Singh T. and Subba Rao G. (1991) Effect of female pupal weight on fecundity of mulberry silkworm Bombyx mori. Indian Journal of Sericulture, 30, 141 - 143.
 Basavaraja H.K., Suresh Kumar N., Mal Reddy N. and Datta R.K. (1998) New approaches to bivoltine silkworm breeding; in Silkworm Breeding. Sreerama Reddy G. (ed.), Oxford and IBH Publishing Co. Pvt. Ltd., New Delhi, India, pp.131-139, .
 Gowda B.L.V., Sannaveerappanayar V.T. and Shivayogeshwar B. (1989) Fecundity and hatchability in mulberry silkworm, Bombyx mori (L) as influenced by pupal weight. International Congress on Tropical Sericultural Practices Bangalore, February 18-23, Part VI, pp. 21-24
 Gowda B.L.V., Narayanaswamy T.K. and Munirajappa R. (1988) Impact of pupal weight on growth and development of the following generation in the silkworm Indian race NB7 (Bombyx mori). Sericologia, 29, 481-489.
 Singh T., Jayaswal K.P. and Subba Rao G. (1992a) Correlation studies between some breeding parameters of silkworm, Bombyx mori (L). Journal of Zoological Research, 5, 47 - 50.
 Petkov N. (1981c) Phenotypic correlations and regressions between some silkworm (Bombyx mori) breeding characters. Genet Sel, 14, 386-390.
 Rajanna G.S. and Reddy G.S. (1990a) Studies on the variability and interrelationship between some quantitative characters in different breeds of silkworm, Bombyx mori L. Sericologia, 30, 67-74.
 Long N.V. and Petkov N. (1987) Breeding - Genetic studies in some silkworm (Bombyx mori) breeds. I. Variability and correlations of quantitative characters. Genet Sel, 20, 58-62.
 Petkov N. (1981b) Variability and correlations between some characteristic features of silkworm (Bombyx mori L). Zhivotnov'd Nauki, 18, 83-86.
 Ghanipoor M., Mirhosseini, S.Z., Seidavi, A.R., Shadarvar, A. and Bizhannia, A.R. (2007) Effect of selection index in line level on cocoon shell weight and cocoon shell percentage of silkworm, Bombyx mori L. commercial hybrids. Proceeding of 2nd Animal Science Congress, 4-5 September, 2007 Guilan University, pp. 181-182.
 Miyahara T. (1978) Selection of long filament length basic variety. I. Effect of selection in the later generations. Acta Sericologia, 106, 73-78.
 Jonaka N. (1986) Some parameters of basic quantitative breeding characters in silkworm, Bombyx mori. II. Correlations between the basic breeding characters. Genet Sel, 19, 144-150.
 Singh T., Singh K. and Das M. (1992b) Astounding effect of correlated parameters in silk industry. Indian Textile Journal, 102, 26 - 30.
 Satenahalli S.B., Govindan R., Goud J.V. and Magdum S.B. (1990) Genetic parameters and correlation coefficient analysis in silkworm, Bombyx mori. Mysore Journal of Agricultural Sciences, 24, 491-495.
 Yan L.L. (1983) The estimates of heritability of pupal weight, cocoon weight and number of eggs laid in the silkworm (Bombyx mori) and its genetic correlation between these characters and path coefficient analysis. Journal of Sericultural Sciences of China, 9, 149-155.
 Rajanna G.S. and Reddy G.S. (1990b) New dimensions in tropical silkworm race breeding. Indian Silk, 28, 8-12.
 Gamo T. and Hirabayashi T. (1983) Genetic analysis of growth rate, pupation rate and some quantitative characters by diallel cross in the silkworm, Bombyx mori. Japanese Journal of Breeding, 33, 178-190.
 Singh T. and Singh K. (1993) Heritability and correlations between some economic characters in Bombyx mori (L). Science & Culture, 59, 51 -52.
 Ashoka J. and Govindan R. (1990) Genetic estimates for quantitative traits in bivoltine silkworm, Bombyx mori L. Mysore Journal of Agricultural Sciences, 24, 371-374.
 Lande R. and Arnold S.J. (1983) The measurement of selection on correlated characters. Genet Sel, 20, 58-62.
 Arnold S.J. and Wade M.J. (1984) On the measurement of natural and sexual selection: Theory. Evolution, 38, 709-719.
 Seidavi, A., Mirhosseni, Z., Mavvajpour, M. Ghanipoor, M., Bizhannia, A., Qotbi, A. and Chamani, M. (2009) Additive genetic variations and selection index changes of economic traits of the silkworm commercial pure lines against parent selection pressure. American-Eurasian Journal of Agriculture and Environmental Sciences, 6, 460-465.
 Grekov D. and Petkov N. (1990) Correlation between some traits and possibilities for prognostication heterosis of F1 crosses on hybridization of Bombyx mori L. Zhivotnov's Nauki, 27, 80
 Ozdzenska B. and Kremky J. (1987) Estimation of heritability and genotypic, phenotypic and environmental correlations in out-bred populations of mulberry silkworm, Bombyx mori L. Sericologia, 27, 633-638.
 Liu Q-X and He S-m (1991) Studies on the efficiency of selection for improving technological characters of cocoon filament of Bombyx mori L. Canye Kaxue, 17, 75- 79.