Jha, Reena Kumari, Sukirty Khadaka, Yubina Gautam, Manisha Bade, Mukesh Kumar Jha, and Ojashwi Nepal. “Prevalence of Color Blindness in Undergraduates of Kathmandu University”. Journal of Nepal Medical Association 56, no. 214 (December 31, 2018): 900-903. Accessed January 29, 2020. http://www.jnma.com.np/jnma/index.php/jnma/article/view/3913.