Marcus, V. B., N. A. Atan, S. Md Salleh, L. Mohd Tahir, and S. Mohd Yusof. “Exploring Student Emotional Engagement in Extreme E-Service Learning”. International Journal of Emerging Technologies in Learning (iJET), vol. 16, no. 23, Dec. 2021, pp. pp. 43-55, doi:10.3991/ijet.v16i23.27427.