Qulub, Sifaul. “Persepsi Masyarakat DAS Kanal Mangetan Terhadap Perubahan Sungai Akibat Keberadaan PT. Tjiwi Kimia”. Environmental Pollution Journal (June 5, 2025): 157–171. Accessed June 18, 2025. https://ecotonjournal.id/index.php/epj/article/view/164.