Katima, J.H.Y., A. Azapagic, and D. Handley. “Nitrogen Oxides Absorption into Sodium Hydroxide Solution in a Packed Column: Effect of Naoh Concentration”. Tanzania Journal of Engineering and Technology 15, no. 1 (September 16, 2020): 83-94. Accessed November 23, 2024. https://tjet.udsm.ac.tz/index.php/tjet/article/view/119.