Chintia Milanda. Pemetaan Sebaran Kadar Amonia Kali Surabaya di Kawasan Industri Pabrik Daur Ulang Kertas. EPJ [Internet]. 2025 Aug. 1 [cited 2025 Dec. 7];5(3):275-8. Available from: https://ecotonjournal.id/index.php/epj/article/view/278