Montarcih Limantara, Lily, Mohammad Bisri, and Rizq Fajrianto. “Optimization of Water Usage at Irrigation Area of Pakis-Malang Regency-Indonesia by Using Linear Programming”. International Journal of Engineering & Technology 7, no. 4 (June 30, 2019): 6432–6436. Accessed December 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/21055.