ALI Z. ZALOV, trans. “Complex Formation and Liquid-Liquid Extraction in the Niobium(V) – 2,4-Dihydroxythiophenol– Hydrophobic Amines System”. Pakistan Journal of Analytical & Environmental Chemistry 16, no. 2 (December 1, 2015): 19–27. Accessed April 20, 2026. https://pjaec.pk/index.php/pjaec/article/view/286.