Veer Singh, L., S. Jayakumar, N. Gupta, S. P. Dixit, and S. C. Gupta. “NUCLEOTIDE COMPARISON OF GDF9 GENE IN INDIAN YAK AND GADDI GOAT: HIGH ALTITUDE LIVESTOCK ANIMALS”. Journal of Microbiology, Biotechnology and Food Sciences, vol. 2, no. 6, June 2013, pp. 2452-4, https://office2.jmbfs.org/index.php/JMBFS/article/view/7103.