ZUMBROICH, T. J. The Ethnobotany of Teeth Blackening in Southeast Asia. Ethnobotany Research and Applications, [S. l.], v. 7, p. 381–398, 2009. Disponível em: https://ethnobotanyjournal.org/index.php/era/article/view/393. Acesso em: 19 oct. 2021.