1. https://resilienteducator.com/instructional-design/using-humor-in-online-learning/
2. https://www.onlineuniversities.com/blog/2009/10/100-hilarious-college-courses-that-really-exist/
3. https://hms.harvard.edu/sites/default/files/HMS_OTB_Spring10_Vol16_No2.pdf
