M. A. Kadir, M. N. A. Mohd Salleh, and N. S. Kassim, “UV-Vis Spectroscopic Studies of Diamide Ligands as Potential Tools for Anion Sensor”, EJSMT, vol. 3, no. 2, pp. 31–37, Dec. 2016, Accessed: May 03, 2025. [Online]. Available: https://ejournal.upsi.edu.my/index.php/EJSMT/article/view/50