M. Ali, Hapipah, Siti Nadiah Abdul Halim, Subramaniam P, Zain S.M, Jefri Basirun W, Endom Ismail, Noorlidah Abdullah, and Teoh H.L. 2006. “Synthesis and Biological Properties of Zinc(II)Complexes of Some 2-Hydroxyacetophenone-Benzoylhydrazones”. Malaysian Journal of Science 25 (2):97-106. http://mojes.um.edu.my/index.php/MJS/article/view/8134.