S. PRASONGSOM, K. THAMMASIRI, and N. CHUENBOONNGARM, “Efficient Adventitious Shoot Regeneration from Shoot Tip Culture of Rhynchostylis gigantea (Lindl.) Ridl. (amethyst-purple), a Rare Thai Orchid Species”, Walailak J Sci & Tech, vol. 13, no. 9, pp. 757–767, Feb. 2016.