Sipahutar, Merry Krisdawati. “An Efficiency and Environmental Impact of Hospital Wastewater Treatment Systems in Balikpapan, Indonesia”. Jurnal Green Growth dan Manajemen Lingkungan 16, no. 1 (July 30, 2026): 208–222. Accessed October 1, 2026. https://journal.unj.ac.id/unj/index.php/jgg/article/view/70817.