Umarie, I.; Wijaya, I.; Widiarti, W. .; Hazmi, M. .; Oktarina, O.; Jalil, A.; Wicaksono, A. A. .; Suyani, I. S. . Response of Various Lettuce Varieties (Lactuta Sativa L.) to Fe Micro Fertilizer in Hydroponic Cultivation Systems. IJBEA 2024, 3, 79-97.