Wang, Shanshan, Junjie Song, Liwei Wang, Hiroyuki Tomiyama, Takanori Saito, Katsuya Ohkawa, Hitoshi Ohara, Zhao Yuhui, Varit Srilaong, and Satoru Kondo. 2023. “Effect of varying concentrations of melatonin on anthocyanin and sugar metabolism in grapes (Vitis labruscana L.)”. Agriculture and Natural Resources 57 (1). Bangkok, Thailand:107–116. https://li01.tci-thaijo.org/index.php/anres/article/view/258258.