Astuti, Rahma Yudi, and Dhika Amalia Kurniawan. “Islamic Economic Analysis Reviews: The Transparency of Top-up Banking”. Al Tijarah 5, no. 1 (June 1, 2019): 57–62. Accessed October 13, 2024. https://ejournal.unida.gontor.ac.id/index.php/altijarah/article/view/3648.