DU, X. .; CHAABAN, Y. .; ALMABRD, Y. M. . Exploring the Concepts of Fidelity and Adaptation in the Implementation of Project Based Learning in the Elementary Classroom: Case Studies from Qatar. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 18, n. 9, p. 1–22, 2019. Disponível em: https://ijlter.net/index.php/ijlter/article/view/504. Acesso em: 24 jun. 2026.