Ali SM, Moshref DHS, ibrahim SK, Mohammed HA, Shakor DZM, Mohmud DS. Studies and Modeling for Upgrading Units for Heavy Oil Refineries. Journal of Petroleum Research and Studies [Internet]. 2018Jul.1 [cited 2024Apr.29];8(2):240-55. Available from: https://jprs.gov.iq/index.php/jprs/article/view/247