Maulana, A. et al. 2024. Application of Solenoid Electromagnetic Field on Lettuce Growth in the Floating Raft Hydroponic System. Jurnal BETA (Biosistem dan Teknik Pertanian). 12, 1 (Apr. 2024), 187–196. DOI:https://doi.org/10.24843/JBETA.2024.v12.i01.p21.