Abbas Al-Zubaidi, R. M., and F. S. Hussein Al-Jubouri. “The Effect of LEED’s Strategy and Conceptual Change on the Development of Deductive Thinking Among Literary Fifth-Grade Students”. Journal of Tikrit University for Humanities, vol. 28, no. 12, 2, Dec. 2021, pp. 435-64, doi:10.25130/jtuh.28.12.2.2021.21.