Ejiofor-Chima, Ngozi Ann. “Effect of Visual Manipulatives on Junior Secondary School Students’ Interest and Achievement in Geometry”. Faculty of Natural and Applied Sciences Journal of Mathematics, and Science Education 6, no. 2 (March 31, 2025): 130–136. Accessed April 25, 2025. https://fnasjournals.com/index.php/FNAS-JMSE/article/view/701.