ZAINUDIN A. TALIB, MUHAMMAD MUIZZUDDIN, AIDIL MUZAFFAR, MALVINN RUNGAI, and HAIRUDDIN MOHAMMAD. “Penanda Paip PVC Dan UPVC”. Multidisciplinary Applied Research and Innovation 6, no. 4 (November 17, 2025): 109–114. Accessed March 15, 2026. https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/17136.