Radi, R., Y. N. Adyatma, and M. Hajad. “Optimization of Fooder Sorghum (Sorghum Bicolor L. Moench) Growth in a Closed Hydroponic System Through Combination of Red and Blue LED Lighting”. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), vol. 11, no. 2, June 2022, pp. 314-2, doi:10.23960/jtep-l.v11i2.314-324.