“The Impact of Strategy 3-2-1 in acquiring Concepts of Sociology of fourth grade students: The Impact of Strategy 3-2-1 in acquiring Concepts of Sociology of fourth grade students”, jperc, vol. 16, no. 62, pp. 176–194, Jul. 2019, Accessed: Jun. 24, 2025. [Online]. Available: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/917