Mohd Ali NA, Alih S, Ahmad MA, Khairul AP. The Investigation Of OSC PSH @ KKSEM Website Usefulness Towards Information Delivery Of Lifelong Learning Programs. iJTvET. 2024;5(1):193-202. Accessed November 3, 2025. https://journal.pktm.com.my/index.php/ijtvet/article/view/124