SAHI, Q. M. The effectiveness of the 4H strategy on the achievement of first-year middle school students in physics. Journal of Tikrit University for Humanities, [S. l.], v. 33, n. 8, 2, p. 355–373, 2026. DOI: 10.25130/jtuh.33.8.2.2026.19. Disponível em: https://jtuh.org/index.php/jtuh/article/view/6778. Acesso em: 15 oct. 2026.