Firdaus, Muhammad, Budi Juliandi, and Nadia Ayuna. “Top-Up Individual Services On Fund Applications In Kota Langsa (Comparative Study Of Shafi`Iyyah And Malikiyyah)”. Jurnal Investasi Islam 8, no. 2 (January 27, 2024): 242-253. Accessed January 18, 2026. https://journal.iainlangsa.ac.id/index.php/jii/article/view/7587.