Choopeng, S., Te-chato, S., and Khawnium, T. “Effect of colchicine on survival rate and ploidy level of hydrid between Dendrobium santana x D. friedericksianum orchid”. International Journal of Agricultural Technology, vol. 15, no. 2, Mar. 2019, pp. 249-60, https://li04.tci-thaijo.org/index.php/IJAT/article/view/8197.