Masyitah As Sahara, Charly Marlinda, Sri Kurnia, Rachmad Chartady. PERFORMANCE OF SHARI’A BANKING IN INDONESIA BEFORE AND DURING THE COVID 19 PANDEMIC: ISLAMICITY PERFORMANCE INDEX APPROACH. IJSS [Internet]. 2023 Dec. 31 [cited 2025 Jul. 5];3(4):539-48. Available from: https://mail.bajangjournal.com/index.php/IJSS/article/view/7165