เพ็ชร์ยิ้ม ณ. . Recovery of Lube Base Oil from Used Lubricant Oil by Mixed Solvent Extraction. Journal of Engineering, RMUTT, [S. l.], v. 15, n. 1, p. 9–14, 2017. Disponível em: https://ph01.tci-thaijo.org/index.php/jermutt/article/view/241994. Acesso em: 7 may. 2024.