Yaacob, Nor Faizah, and Muhammad Sofwan Mahmud. “Educational Interventions for Developing Spatial Reasoning in School Mathematics: A Systematic Literature Review of Empirical Studies”. International Journal of Learning, Teaching and Educational Research 25, no. 7 (July 30, 2026): 1000–1025. Accessed September 12, 2026. http://mail.ijlter.net/index.php/ijlter/article/view/2984.