Opit, Prudensy F, Indah Yessi Kairupan, and Fribianty M Rusuh. 2021. “A MILP Model for Water Level Sensor Placement With Multi-Sensor and Multi-Disaster Areas”. Jurnal Teknik Industri 22 (2):185-95. https://doi.org/10.22219/JTIUMM.Vol22.No2.185-195.