Khotimah, Khusnul, Suci Nur Utami, and M. Erwin Dwi Listyanto. 2023. “Cultivation Techniques and Feasibility of Hydroponic Lettuce Farming by Utilizing Yards in Hidroponik Media”. Jurnal Online Pertanian Tropik 9 (3):224-31. https://doi.org/10.32734/jopt.v9i3.10775.