GEBRESELASSIE, G A, S K SRIVASTAVA, S K GHOSH, and R P TRIPATHI. 2013. “Level of Extra and Intracellular Enzymes During Preservation of Good and Poor Quality Ejaculates in Crossbred Bulls”. The Indian Journal of Animal Sciences 83 (7). https://epubs.icar.org.in/index.php/IJAnS/article/view/31325.