M.Z.A, Malek, Ku Zarina K.A, Nor Adilah, and Isnin A. “Effects of Yâ‚‚O₃, Pd and Rhâ‚‚O₃ Added in TiOâ‚‚ Based Sensors Materials”. Malaysian Journal of Science 21 (December 26, 2002): 113–116. Accessed May 18, 2024. http://mjs.um.edu.my/index.php/MJS/article/view/8868.