Kurniadi MD, Biyanto B. Strategy to Build Competitive Advantage of Islamic Higher Education at an University in Surabaya. acopen [Internet]. 2022Jun.30 [cited 2024Apr.16];60:10.21070/acopen.6.2022.1814. Available from: https://acopen.umsida.ac.id/index.php/acopen/article/view/1814