D. Irawanto and I. Mu’ammal, “The Effect of Volunteer and Servant Leadership Motivation on Organizational Commitments Mediated by Volunteer Satisfaction: Evidence from Indonesian Sports Student Activity Unit: DOI: 10.46988/IJIHRM.01.02.2020.001”, IJIHRM, vol. 1, no. 02, pp. 01-08, Jul. 2021.