Muhammad Athar Naufal, and Salmahaminati Salmahaminati. “Analisis Kadar COD (Chemical Oxygen Demand) Dan TSS (Total Suspended Solid) Pada Air Sungai Di Daerah Semarang”. INDONESIAN JOURNAL OF CHEMICAL RESEARCH 9, no. 1 (July 24, 2024). Accessed October 11, 2024. https://journal.uii.ac.id/chemical/article/view/33458.