Juahir, Yusnita, Hapipah Mohd Ali, Daniel Zin Hua Wong, Mustaffa Ahmad, Azlan Kamari, and Mai Shihah Abdullah. “Synthesis, Structural Characterization and DPPH Radical Scavenging Activity of Cu(II), Ni(II), Zn(II) and Cd(II) Complexes of 2,6-Diacetylpyridine bis(benzenesulfonohydrazide)”. Journal of Science and Mathematics Letters 4, no. 2 (January 19, 2019): 12–21. Accessed March 28, 2024. https://ejournal.upsi.edu.my/index.php/JSML/article/view/390.