Hossain, I., Rakib, A., Talukder, B. and Hira, H. 2015. Experimenental study of the effect of orifice inclination on gas holdup in bubble columns. Chemical Engineering Research Bulletin. 17, 1 (Apr. 2015), 18–24. DOI:https://doi.org/10.3329/cerb.v17i1.22914.