Karmakar, A., & Biswas, R. (2021). Experimental design modelling for the extraction of vanadium(IV) extraction V(IV)-SO₄ ^2- (H+, Na+)-Cyanex 301-kerosene system. Bangladesh Journal of Scientific and Industrial Research, 56(2), 95–104. https://doi.org/10.3329/bjsir.v56i2.54316