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Hamid, H.Y., Zuki, A.B.Z., Haron, A.W., Noordin, M.M. and Goh, Y.M. (2012). Effects of elevated ambient temperature on reproductive outcomes and offspring growth depend on exposure time. The Scientific World Journal. 2012 (2012). Doi: 10.1100./2012/359134.

Hamid, H.Y., Zuki, A.B.Z., Yimer, N., Haron, A.W., Noordin, M.M. and Goh, Y.M. (2012). Effects of elevated ambient temperature on embryo implantation in rats. African Journal of Biotechnology. 11(24): 6624-6632.

Hamid, H.Y., Zuki, A.B.Z. (2012). Embryo implantation: shedding light on the roles of ovarian hormones, cytokines and growth factors in the implantation process. African Journal of Biotechnology. 11(97): 16297-16304.

Hamid, H.Y. (2012). Morphological and Molecular Changes in Embryo-Maternal Interactions in a Rat Model at Optimal and Elevated Environmental Temperatures. Ph.D. Thesis. Universiti Putra Malaysia. Malaysia.

Hamid, H.Y. (2001). The Effect of Vasectomy on the Morphology and Histochemistry of the Excurrent Ducts of Ram Testis. M.V.Sc. Thesis. University of Khartoum. Sudan.