On GCYD-Method In e-Abacus Diagram. Iraqi Journal of Science, [S. l.], v. 64, n. 7, p. 3452–3457, 2023. DOI: 10.24996/ijs.2023.64.7.26 . Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6724.. Acesso em: 18 may. 2024.