Fitri E, Rahadian Zainul, Syukri. Kaolinite Nanotubes as Support Catalysts of Sulfuric Acid (H2SO4) for Transesterification Reaction of Waste Cooking Oil into Methyl Ester for Biodiesel. EKSAKTA [Internet]. 2025Mar.23 [cited 2025Apr.3];26(02):113-24. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/577