Fadlillah, Nilna, M. Yunus Abu Bakar, & Abd. Rachman Assegaf.
" Optimizing Human Development: The Relevance of Hasan Langgulung's Concept of Islamic Education in the 21st Century." <em>Jurnal Penelitian Pendidikan Islam</em> [Online], 11.1 (2023): 18-32. Web. 13 Aug. 2026