NGERNSAENGSARUAY, C.; LEKSUNGNOEN, N. .; BOONTHASAK, W.; UTHARATSAMEE, S.; RACHARAK, P.; LEETANASAKSKUL, K.; PONGAMORN, P.; SAENGBUAPUEAN, A. Additional knowledge on the genus Mitragyna (Rubiaceae) in Thailand. Thai Forest Bulletin (Botany), [S. l.], v. 50, n. 1, p. 20–39, 2022. DOI: 10.20531/tfb.2022.50.1.03. Disponível em: https://li01.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/251978. Acesso em: 9 feb. 2023.