Asrul, Asrul, Mohammad Ajmal, and Harun Alrasyid. “Mandailing Ulama in the Early 20th Century: The Meaning and Typology”. Nahrasiyah: Journal of Aceh and Malay Archipelago Heritage 1, no. 1 (December 30, 2023): 1–17. Accessed October 24, 2024. https://journal.iainlhokseumawe.ac.id/index.php/nahrasiyah/article/view/1860.