Pathak, Rekha, et al. “Haemodyanamic Evaluation Of Intraspinal Xylazine And Ketamine Combinations In Buffalo Calves ”. Indian Journal of Veterinary Sciences and Biotechnology, vol. 8, no. 2, Dec. 2012, pp. 64-67, https://acspublisher.com/journals/index.php/ijvsbt/article/view/3204.