Labana, Amar Iqbal Singh, et al. “Polarized Light Microscopy of Synovial Fluid of Chronic Arthritic Joints in Donkey (Equus Asinus)”. The Indian Journal of Animal Sciences, vol. 68, no. 9, Sept. 2012, https://epubs.icar.org.in/index.php/IJAnS/article/view/21967.