Nuriswaty, K. S., S. L. Pagiling, and N. Nurhayati. “Visuospatial Reasoning of Eighth-Grade Students in Solving Geometry Problems: A Gender Perspective”. Beta: Jurnal Tadris Matematika, vol. 13, no. 2, Nov. 2020, pp. 152-67, doi:10.20414/betajtm.v13i2.400.