OBYED, S. M. Study the Effect of Residence Time Parameters on Thermal Cracking Extract Phase Lubricating Oil. Al-Khwarizmi Engineering Journal, [S. l.], v. 15, n. 3, p. 51–59, 2019. Disponível em: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/648. Acesso em: 13 aug. 2022.