Gomes dos Santos, Marilena, Marcelo M. Moreira, Mara Lygia Guedes Malaquias, and Virgínia T. Schall. 1993. “ Health Education in First Level Schools at the Outskirts of Belo Horizonte, Minas Gerais State, Brasil: II. Awareness, Knowledge and Prevalence of Helminthic Diseases Among First Grade Teachers and Pupils ”. Revista Do Instituto De Medicina Tropical De São Paulo 35 (6): 573-79. https://revistas.usp.br/rimtsp/article/view/29106.