Aryal, N., Neopane, A. K., Thapa, M., Singh, U. K. and Agrawal, K. (2013) “Crystalline Penicillin for Community Acquired Pneumonia: Does it still work?”, Medical Journal of Shree Birendra Hospital, 11(2), pp. 36–39. doi: 10.3126/mjsbh.v11i2.7908.