Leonardo, L., Rosana Elvince and Ardianor , A. 2020. Pengaruh Air Limbah Kota Palangka Raya Pada Kualitas Air Sungai Kahayan. Journal of Environment and Management. 1, 2 (Jun. 2020), 124–133. DOI:https://doi.org/10.37304/jem.v1i2.1749.