Li, Yunong, Nan Liu, Fang Ji, and Dongxian He. 2022. “Optimal red:Blue Ratio of Full Spectrum LEDs for Hydroponic Pakchoi Cultivation in Plant Factory”. International Journal of Agricultural and Biological Engineering 15 (3):72-77. https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/7362.