Analysis of heavy metal content (Pb, Cu, Cd, and Fe) in the seagrass Thalassia hemprichii as a bioindicator of marine pollution in Tihi-Tihi Village, Bontang City, East Kalimantan. jipt [Internet]. 2025 Mar. 14 [cited 2026 Jan. 17];4(1):13-8. Available from: http://e-journals2.unmul.ac.id/index.php/jipt/article/view/1366