Santos, R. A. ., Collantes, L. M. ., Ibañez E. D. ., Ibarra, F. P. and Pentang, J. T. . (2022) “Innate Mathematical Characteristics and Number Sense Competencies of Junior High School Students”, International Journal of Learning, Teaching and Educational Research, 21(10), pp. 325–340. Available at: https://ijlter.net/index.php/ijlter/article/view/1445 (Accessed: 23 July 2026).