Biswas, R. K., A. K. Karmakar, and M. S. Rahman. “Extraction Equilibrium of Ni(II) in the Ni<sup>2+< sup>-SO<sub>4< sub><sup>2-< sup>-Ac<sup>-< sup>(Na<sup>+< sup>, H<sup>+< sup>) - Cyanex 272 (H<sub>2< sub>A<sub>2< sub>)-Kerosene-3%(v V) Octan-1-Ol System”. Journal of Scientific Research 4, no. 1 (December 23, 2011): 83. Accessed September 20, 2025. https://www.banglajol.info/index.php/JSR/article/view/8007.