MJ, Safruddin, and Sawarni Hasibuan. 2020. “Strategi Mitigasi Risiko Proyek Konstruksi Utilitas Piping Dan Sipil: Studi Kasus PDAM Jakarta”. Operations Excellence: Journal of Applied Industrial Engineering 12 (1). Jakarta, Indonesia:74-87. https://doi.org/10.22441/oe.2020.v12.i1.007.