Asrul, Asrul, Mohammad Ajmal, and Harun Alrasyid. 2023. “Mandailing Ulama in the Early 20th Century: The Meaning and Typology”. Nahrasiyah: Journal of Aceh and Malay Archipelago Heritage 1 (1):1-17. https://doi.org/10.47766/nahrasiyah.v1i1.1860.