ABD-ALI, H. H.; SALIH, S. M. Orthogonal Generalized Higher k-Derivation on Semi Prime Г-Rings. Iraqi Journal of Science, [S. l.], v. 64, n. 2, p. 834–841, 2023. DOI: 10.24996/ijs.2023.64.2.29. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/6795. Acesso em: 1 jun. 2023.