Bhatta, Shishir, Manish Raj Sapkota, Sujita Shrestha, and Rabindra Man Shrestha. “Substance Abuse Among Students in a Dental School”. Journal of Nepal Medical Association 56, no. 214 (December 31, 2018): 896-899. Accessed January 28, 2020. http://www.jnma.com.np/jnma/index.php/jnma/article/view/3900.