[1]
B. . Sadeq Abdulrazzaq, “Gas Holdup and liquid Phase RTD Studies in Multistage Bubble Columns”, J. eng. sustain. dev., vol. 16, no. 1, pp. 326–340, Mar. 2012, Accessed: Jul. 03, 2025. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1182