Takriff, Mohd Sobri, and Zuhrina Masyitah. 2002. “Application of Draft Tube in the Reduction of Backmixing Rate in Oscillatory Flow in a Baffled Column”. ASEAN Journal of Chemical Engineering 2 (1), 15-20. https://dev.journal.ugm.ac.id/v3/AJChE/article/view/7513.