M.Z.A, M., Zarina K.A, K., Adilah, N., & A, I. (2002). Effects of Yâ‚‚O₃, Pd and Rhâ‚‚O₃ Added in TiOâ‚‚ based Sensors Materials. Malaysian Journal of Science, 21, 113–116. Retrieved from https://juku.um.edu.my/index.php/MJS/article/view/8868