Jamil, Shaziah, Riaz H Tariq, and Mubashrah Jamil. 2016. “School Type and Gender Wise Studies of Understanding of Three Dimensional Diagrams Among Children’s of 8 Years of Age”. Pakistan Journal of Social Sciences 36 (2):635-40. https://pjss.bzu.edu.pk/index.php/pjss/article/view/448.