ZAINUDIN A. TALIB MM, AIDIL MUZAFFAR, MALVINN RUNGAI, MOHAMMAD H. Penanda Paip PVC dan UPVC. MARI [Internet]. 2025 Nov. 17 [cited 2026 Aug. 15];6(4):109-14. Available from: https://periodical.uthm.edu.my/index.php/mari/article/view/17136