Awaludin, A. A. R., N. Selvia, and F. R. Andrari. “Mathematical Representation of Students in Solving Mathematic Problems Reviewed from Extrovert-Introvert Personality”. International Journal of Elementary Education, vol. 5, no. 2, May 2021, pp. 323-9, doi:10.23887/ijee.v5i2.33206.