Safitri, A. D. ., D. U. . Fitrianti, F. Febriliati, R. . Awaliyah, and J. W. . Kusuma. “PRIVATE LESSONS IN IMPROVING MATHEMATICS LEARNING OUTCOMES”. Tesseract: International Journal of Geometry and Applied Mathematics, vol. 1, no. 2, July 2023, pp. 67-73, doi:10.57254/tess.v1i2.13.