Arjudom, N., T. Yottasaen, P. Arsaisuk, K. Loonaudom, S. Khakhammark, S. Srikapa, and P. Sakdee. “Effects of photoperiod on the growth and morphology of butterhead lettuce in a vertical hydroponic system”. Agricultural and Biological Engineering, vol. 3, no. 1, Jan. 2026, pp. 30-34, https://ph04.tci-thaijo.org/index.php/abe/article/view/12164.