Üstün, Süleyman. “Usability of Organic Resin-Based Manganese-Added Methyl Ester Oil Produced from Sardine Fish Waste As an Alternative Fuel in Diesel Engine”. CT&F - Ciencia, Tecnología y Futuro 11, no. 2 (December 27, 2021): 5–16. Accessed March 29, 2024. https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/364.