METUSHAJ, A. Epidemiology of Periodontal Diseases. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies, [S. l.], v. 3, n. 6, p. 136–140, 2015. Disponível em: https://anglisticum.org.mk/index.php/IJLLIS/article/view/464. Acesso em: 6 may. 2024.