SHARMA, G. T., P. K. DUBEY, A. KATIYAR, and G. S. KUMAR. “Localization and Expression of Proliferating Cell Nuclear Antigen (PCNA)”. The Indian Journal of Animal Sciences, vol. 81, no. 3, Mar. 2011, https://epubs.icar.org.in/index.php/IJAnS/article/view/4793.