“Improving The Quality of Water for Public Consumption in Dumai City,Riau-Indonesia: Perbaikan Kualitas Air Konsumsi Masyarakat Di Kota Dumai”. Journal of Community Service and Application of Science 1, no. 1 (March 25, 2024): 16–23. Accessed October 6, 2025. https://jcsas.kpn-kopx.id/index.php/jcsas/article/view/3.