Biosynthesis of ZnO nano particles assisted by Euphorbia tirucalli (Pencil Cactus). International Journal of Current Engineering and Technology, [S. l.], v. 1, n. 1.Special Issue, p. 176–179, 2013. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/3825. Acesso em: 26 jul. 2026.