Aluka Henry Chukwuemeka, Iheme Chigozie, Nnadikwe Johnson, & Okakpu Ogochukwu Judith. (2026). Production of Lubricating Grease Using Non-Edible Soybean Sludge and Polypropylene as Complex Thickener. Jurnal Teknik Indonesia, 5(02), 197–209. Retrieved from https://jurnal.seaninstitute.or.id/index.php/juti/article/view/1206