ZBAR, K. T. The effect of Strategy (PQ4R) on acquiring Islamic concepts and improving Investigation Skills among intermediate stage students in Iraq. Journal of Tikrit University for Humanities, [S. l.], v. 26, n. 11, p. 511–534, 2019. DOI: 10.25130/jtuh.26.11.2019.24. Disponível em: https://jtuh.org/index.php/jtuh/article/view/908. Acesso em: 10 sep. 2026.