Febbrizal, Febbrizal, and Abdurrakhman Abdurrakhman. “Mochtar Lubis and the 1969 Push for Spelling Unity in the Malay World”. Analisis Sejarah: Mencari Jalan Sejarah, vol. 15, no. 1, June 2025, pp. 81-86, doi:10.25077/jas.v15i1.137.