Shahba, M.I., E.-S. R.I., and E.-A. A.I. “Freezability of Buffalo Semen by Using Tris Extender Supplemented With Different Concentrations of LDL”. Journal of Innovations in Pharmaceutical and Biological Sciences, vol. 3, no. 1, Jan. 2016, pp. 194-7, https://jipbs.com/index.php/journal/article/view/128.