Victor Hasudungan, Herbert Wibert, y Sulthon Sjahril Sabaruddin. «The Business Prospect of Biomass to Methanol Development in Namibia: A Review». Journal of Management & Business Studies 5, no. 1 (mayo 16, 2023): 1–24. Accedido noviembre 23, 2024. https://revistas.uautonoma.cl/index.php/jmabs/article/view/2021.