Analysis of pH and Total Coliform Bacteria Contamination in Rainwater Based on the Materials and Maintenance of Rainwater Harvesting Systems. Gema Lingkung Kesehatan [Internet]. 2026 Apr. 2 [cited 2026 Apr. 2];24(2):197-206. Available from: https://gelinkes.poltekkes-surabaya.ac.id/index.php/gelinkes/article/view/408