HOW PRIVATE HIGHER EDUCATION INSTITUTIONS IN INDONESIA CHANGED THEIR MARKETING MIX AMIDST THE COVID-19 PANDEMIC. Singaporean Journal of Business Economics and Management, [S. l.], v. 8, n. (3), p. 94–99, 2021. Disponível em: https://singaporeanjbem.arabianjbmr.com/index.php/SJBEM/article/view/518. Acesso em: 26 jul. 2026.