عبدالكبير س. أ. ع. CONSTRUCTING FORMAL MATHEMATICAL PROBLEMS WITH A NTH FORM USING INDUCTION (HOW MANY TRIANGLES IN TRIANGLE?) . Electronic Journal of University of Aden for Humanity and Social Sciences, [S. l.], v. 4, n. 1, p. 149–183, 2023. DOI: 10.47372/ejua-hs.2023.1.241. Disponível em: https://ejua.net/index.php/EJUA-HS/article/view/241. Acesso em: 11 mar. 2025.