MALDITA PG. INSTALASI SEPTIC TANK KOMUNAL PERUMAHAN WISMA GUNUNG IV BALIKPAPAN. JUTATEKS [Internet]. 2019Jul.22 [cited 2025Jan.5];2(1):1 -5. Available from: https://ojs.poltekba.ac.id/ojs/index.php/jutateks/article/view/86