Yasin, Burhanuddin, Omar K Burhan, Faisal Mustafa, Ika Apriani Fata, and Endang Komariah. “STUDENT CONTRIBUTION INDEX (SCI) IN SCIENCE: A MEASURE OF CONTRIBUTION TO MITIGATING SOCIAL LOAFING AND FREE-RIDING IN TEAM PROJECTS”. Jurnal Ilmiah Ilmu Terapan Universitas Jambi 9, no. 3 (August 31, 2025): 1066–1078. Accessed April 17, 2026. https://www.online-journal.unja.ac.id/JIITUJ/article/view/42064.