Paudel, S., P. Kayastha, P. Pokhrel, A. Shah, R. Ghimire, and M. Ansari. “Giant Cell Tumor of Patella”. Journal of Institute of Medicine Nepal, vol. 34, no. 3, Oct. 2013, pp. 58-60, https://www.nepjol.info/index.php/JIOM/article/view/8920.