Pathak, Virender, and Rajesh Rajput. “Histological and Histochemical Studies on the Trachea of Gaddi Sheep”. Himachal Journal of Agricultural Research 43, no. 2 (December 1, 2017): 126–130. Accessed December 10, 2025. http://hjar.org/index.php/hjar/article/view/132706.