“Role of [2-((Z)-(4-hydroxy-3-methoxy-5-((E)-thiazol-5- yldiazenyl)benzenylidene)amino)phenol] (MThBAP) in Extractive Spectrophotometric Determination of Nickel (II)”, IJFANS, vol. 11, no. 12, pp. 10278–10285, Jan. 2022, Accessed: Aug. 25, 2026. [Online]. Available: http://www.ijfans.org/index.php/Journal/article/view/13897