Netlak, P. ., and W. . Imsabai. “Role of Carbohydrates in Petal Blackening and Lack of Flower Opening in Cut Lotus (Nelumbo Nucifera) Flowers”. Agriculture and Natural Resources, vol. 50, no. 1, Feb. 2016, pp. 32-37, https://li01.tci-thaijo.org/index.php/anres/article/view/243862.