Study on the Water Quality of Kali Jagir River Surabaya Reviewed from the Cadmium (Cd) and Lead (Pb) Content. Gema Lingkung Kesehatan [Internet]. 2024 Jan. 31 [cited 2025 Dec. 9];22(1):18-22. Available from: https://gelinkes.poltekkes-surabaya.ac.id/index.php/gelinkes/article/view/104