Kamarudin, M. K.; Jun, N. W. Y.; Rashid, A. A.; Devaraj, N. K.; Shamsuddin, N. H. Factors Associated With Motivation to Volunteer Among Lecturers in Faculty of Medicine and Health Sciences, Universiti Putra Malaysia. Int. J. Hum. Health Sci. 2020, 4, 136-141.