Hermantoro, Hermantoro, Fahmi W Kifli, Rolly Marta, Wandha Atmaka Aji, and Risca Permatasari Nirfrizal. “Economic Feasibility of Embankment Construction With a Polder System for Optimizing Sustainable Palm Oil Cultivation”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 14, no. 6 (December 5, 2025): 2069–2079. Accessed December 17, 2025. https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/11285.