Ningrum, Susanti Oktavia. “Analysis Quality of Water River and Quality of Well Water in The Surrounding of Rejo Agung Baru Sugar Factory Madiun”. JURNAL KESEHATAN LINGKUNGAN 10, no. 1 (August 14, 2018): 1–12. Accessed December 22, 2024. https://e-journal.unair.ac.id/JKL/article/view/9381.