Al-Shehri, Mohammad Salih. “Effect of Differentiated Instruction on the Achievement and Development of Critical Thinking Skills Among Sixth-Grade Science Students”. International Journal of Learning, Teaching and Educational Research 19, no. 10 (October 31, 2020): 77–99. Accessed March 31, 2026. https://www.ijlter.net/index.php/ijlter/article/view/222.