Nurul Azimah Ahmad Arzaai, I. . Mat Nashir, and S. A. . Yusoff, “The Validity and Reliability of the PLC Module in PLC Programming and Applications Topics”, emait, vol. 7, no. 1, pp. 15–22, Jun. 2026, Accessed: Aug. 12, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/emait/article/view/23573