NOLLMEYER, G. E. .; KELTING-GIBSON, L. .; GRAVES, C. J. . Mapping the Domain of Subject Area Integration: Elementary Educators’ Descriptions and Practices. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 15, n. 9, p. 1–27, 2016. Disponível em: https://ijlter.net/index.php/ijlter/article/view/891. Acesso em: 30 jul. 2026.