Ray Burton, Atik Aprianingsih, and Say Keat Ooi. “THE ROAD AHEAD FOR INDONESIA’S INTERNATIONAL SCHOOLS: THE EXTENDED MARKETING MIX PERSPECTIVE”. INTERNATIONAL JOURNAL OF EDUCATION, PSYCHOLOGY AND COUNSELLING (IJEPC) 7, no. 47 (September 24, 2024). Accessed July 18, 2025. https://gaexcellence.com/ijepc/article/view/3506.