ATALLAH AL- WAKAA, A. H. The Effectiveness of a Proposed Strategy According to the Twenty Keys of Thinking in the Literary Achievement of Fifth-Grade Students in History and the Development of Their Contemplative Thinking. Journal of Tikrit University for Humanities, [S. l.], v. 28, n. 3, 3, p. 340–357, 2021. DOI: 10.25130/jtuh.28.3.3.2021.19. Disponível em: https://jtuh.org/index.php/jtuh/article/view/1703. Acesso em: 28 apr. 2026.