Narula, D. R., Chaudhary, D. V., Agarwal, D. A. and Narula, D. K. (2011) “Humor as a Learning Aid in Medical Education: Humor as a Learning Aid in Medical Education”, National Journal of Integrated Research in Medicine, 2(1), pp. 22–25. doi: 10.70284/njirm.v2i1.1891.