A’risya A’ina Abdullah, Chu-Liang Lee, Sew-Kin Wong, Ahmad Farimin Ahmad Osman, Zhi-Lin Sum, and Kah-Yoong Chan, “The Effect of LED Grow Light Photoperiods on Indoor Hydroponic Lettuce Farming”, J. Adv. Res. Appl. Sci. Eng. Tech., vol. 32, no. 1, pp. 368–377, Sep. 2023.