Green synthesis of ZnO nanoparticles by Calotropis Gigantea. International Journal of Current Engineering and Technology, [S. l.], v. 1, n. 1.Special Issue, p. 118–120, 2013. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/3813. Acesso em: 30 apr. 2026.