Mohd Sahi, Nor Hasrinah, and Khairi Ariffin. “Rubber Commodity in Federated Malay States (FMS), 1900-1941: Komoditi Getah Di Negeri-Negeri Melayu Bersekutu (NNMB), 1900-1941”. Perspektif Jurnal Sains Sosial dan Kemanusiaan 12, no. 2 (October 19, 2020): 1–10. Accessed May 2, 2024. https://ojs.upsi.edu.my/index.php/PERS/article/view/2740.