Ihom, A.P., Yaro, S.A. and Aigbodion, V.S. (2006) Application of Multiple Regression-Model to the Study of Foundry Clay-Bonded Sand Mixtures. JICCOTECH, 2, 161-168
 Ihom, A.P., Agunsoye, J., Anbua, E.E. and Bam, A. (2009) The Use of Statistical Approach for Modeling and Studying the Effect of Ramming on the Mould Parameters of Yola Natural Sand. Nigerian Journal of Engineering, 16.1, 186-192
 Zrimsek, A.H. and Vingas, G.J. (1961) Effect of Moulding Variables Parameters on the Properties of Clay Bonded Sands. Modern Casting, 39, 85.
 Lucey, T. (2000) Quantitative Techniques. 7th Edition, Low Priced Edition Funded by the British Government, London, 99-150.
 Chakoraborty, M. and Dhindaw, B.K. (1979) Utilization of Regression Equations in Optimization of Properties of Clay Bonded Sands. Proceedings of the 41st International Foundry Congress, Liege, 8.
 Chakoraborty, M. and Dhindaw, B.K. (1985) Application of the Statistical Design of Experiments in the Study of Clay-Bonded Sand Mixtures, the British Foundryman. Journal of the Institute of the British Foundrymen, 114-118.
 Eckey, D.C. and Goldress, J.E. (1989) The Design of Experiments in the Sand Casting Foundry. Transactions of the American Foundryman Society, 62, 605.
 Ihom, A.P., Allen, M.A., Nwonye, I.E., Ilochionwu, C. and Ogbodo, N.J. (2014) Investigation of the Accuracy of Non- linear Model in the Study of Green Permeability of Green Sand Moulds. African Journal of Engineering Research, 2, 14-20.
 Ihom, A.P., Ogbodo, J.N., Allen, A.M., Nwonye, E.I. and Ilochionwu, C. (2014) Analysis and Prediction of Green Permeability Values in Sand moulds using Multiple Linear Regression Model. African Journal of Engineering Research, 2, 8-13.
 Ihom, A.P., Agunsoye, J., Anbua, E.E. and Ogbodo, J. (2011) Effect of Moisture Content on the Foundry Properties of Yola Natural Sand. Leonardo Electronic Journal of Practices and Technologies, 19, 85-96.
 Ihom, A.P. (2012) Foundry Raw Materials for Sand Casting and Testing Procedures. 1st Edition, A2P2 Transcendent Publishers, Jos, 71-92.
 Khanna, O.P. (2008) A Text Book of Material Science and Metallurgy. 8th Reprint Dhanpat Rai Publications, India, 51-100.
 Brown, J.R. (1994) Foseco Foundryman’s Handbook. 10th Edition, Pergamon Press PLC, 10-68.
 Heine, R.W., Loper Jr., C.R. and Rosenthal, P.C. (1967) Principles of Metal Casting. 2nd Edition, Tata Mcgraw-Hill Publishing Company Ltd., New Delhi, 100-150.
 Ihom, A.P., Suleiman, U.M. and Nyior, G.B. (2012) Impact of Swelling Indices of Sokoto Clays on the Moulding Properties of the Clays in Sand Mixtures. Journal of Minerals and Materials Characterization and Engineering, 11, 1050-1054.
 Jain, R.K. (2009) Production Technology. 16th Edition, Khana Publishers, Delhi, 153-158.