Barberán-Mendoza ML, Alcívar-Castro EJ. The understanding of mathematical notions for the cognitive development of students. Int. J. of Health Sci. [Internet]. 2022 Jun. 9 [cited 2024 Nov. 6];6(S5):657-65. Available from: https://sciencescholar.us/journal/index.php/ijhs/article/view/8695