Berwick, M.W.M. (1980) Handbook of organic waste conversion. Van Nostrand Reinhold, Wokingham.
 Akanbi, W.B., Olaniran, O.A., Olaniyi, M.A. and Sanusi, O.O. (2007) Effect of cassava peel compost on growth and nutritional quality of celosia (Celosia argentea L.). Research Journal of Agronomy, 1, 110-115.
 Salisbury, F.B. and Ross, C. (1969) Plant physiology. Wadsworth Publishing Co., Inc., Belmont.
 Neemat, M.A. and Khaled, S.M. (2012) Maximizing effect of mineral fertilizers compost and biofortified compost. Australian Journal of Basic and Applied Sciences, 6, 482-493.
 Rizwan, A., Sher, M.S., Azeem, K., Muhammad, A. and Muhammad, H.M. (2007) Growth and yield response of wheat (Triticum aestivum L.) and maize (Zea mays L.) to nitrogen and L-Tryptophan enriched compost. Pakistan Journal of Botany, 39, 541-549.
 Daramola, D.S., Ogunnowo, A.A., Aina, D.A., Olawuyi, O.J., Agbolade, J.O. and Nwadike, J.C. (2011) Maize (Zea mays L.) growth and tissue response to organic manure and its mineralnitrogen fortifications. Scholarly Journal of Agricultural Science, 1, 47-54.
 A.O.A.C. (1990) Official Method of Analysis. 15th Edition, Association of Official Analytical Chemists, Washington DC.
 Pearson, D. (1981) The chemical analysis of foods. 6th Edition, J. & A. Churchill, Ltd., London.
 Ibitoye, A.A. (2006) Laboratory manual on basic soil analysis. Foladave Publishers, Akure.
 Pomeranz, Y. and Meloan, C.E. (1987) Food analysis: Theory and practice. 2nd Edition, Van Nostrand Reinhold, New York.
 Relf, P.D. (1990) The Virginia master gardener handbook. Virginia Cooperative Extension Services, Blacksburg.
 Simmons, J. (1998) Earthworks and organic products balancing soil nutrition. Turnstile Publishing Company, Orlando.
 Ayoola, O.T. and Makinde E.A. (2008) Performance of green maize and soil nutrient changes is fortified cow dump. African Journal of Plant Science, 2, 19-22.