Joshi, H. S., R. Katyal, A. Singh, G. Joshi, S. Chandra, and K. Singh. “Is Problem Based Learning a Better Teaching Tool As Compared to Didactic Lectures for the Undergraduate Students?”. International Journal Of Community Medicine And Public Health, vol. 4, no. 10, Sept. 2017, pp. 3727-30, doi:10.18203/2394-6040.ijcmph20174240.