SAPTUTYNINGSIH, endah. ANALISIS MANFAAT-BIAYA INSTALASI PENGOLAHAN AIR LIMBAH PT SARI HUSADA YOGYAKARTA. Jurnal Ekonomi & Studi Pembangunan, [S. l.], v. 3, n. 2, 2006. Disponível em: https://journal.umy.ac.id/index.php/esp/article/view/1470. Acesso em: 10 may. 2025.