Yasril, Abdi Iswahyudi, et al. “Evaluation of The Wastewater Treatment Plant (WWTP) Management System at the Ibnu Sina Islamic Hospital Padang ”. Science and Environmental Journal for Postgraduate, vol. 7, no. 2, Jan. 2026, pp. 83-101, doi:10.24036/senjop.v7i2.300.