IVANOVA CHILEVA, Valentina. FORMING THE CONCEPT OF NATURAL NUMBERS AND THE ARTEMATIC ACTIVITIES THROUGH THEM WITH THE GCOMPRIS EDUCATIONAL SOFTWARE. KNOWLEDGE - International Journal , [S. l.], v. 28, n. 3, p. 1005–1010, 2018. DOI: 10.35120/kij28031005V. Disponível em: https://ikm.mk/ojs/index.php/kij/article/view/2861. Acesso em: 16 apr. 2024.