S. . RUANGCHAI, S. PHLAI-NGAM, and N. TUNGPAIROJWONG, “Species Diversity and Structure of Wing Scales of Euploea and Papilio Butterflies from Phromlaeng, Nam Nao National Park, Phetchabun Province”, Walailak J Sci & Tech, vol. 17, no. 3, pp. 167–180, Feb. 2018.