Kassim, Abu Hassan, and Tan Cheng Theng. “Kefahaman Dan Aplikasi Konsep Asid-Bes Dalam Kehidupan Harian Dalam Kalangan Pelajar Tingkatan Empat Sains Johor Bahru: Understanding and Application of Acid-Base Concepts in The Daily Lives of Form Four Students in Johor Bahru”. Journal of Science and Mathematics Letters 1, no. 1 (June 17, 2009): 22–29. Accessed November 23, 2024. https://ojs.upsi.edu.my/index.php/JSML/article/view/322.