Syahnan, M. and Azmi Ahmad 2023. East Sumatra and South Tapanuli Ulama on Religious Sciences at the Turn of the 20th Century. Nahrasiyah: Journal of Aceh and Malay Archipelago Heritage. 1, 1 (Dec. 2023), 18–38. DOI:https://doi.org/10.47766/nahrasiyah.v1i1.1859.