Padmawidjaja, L., Radianto, W. E. D., Salim, I. R., Putri, D. P. K. K. and Pebruanto, D. S. W. (2022) “Mediating Role of Social Presence towards Teaching Presence and Cognitive Presence of Management Study Program”, JMBI UNSRAT (Jurnal Ilmiah Manajemen Bisnis dan Inovasi Universitas Sam Ratulangi), 9(1). doi: 10.35794/jmbi.v9i1.38640.