M MWANGI, P.; KAMAKU, W.; NYAGA, L. The Non-Negative –Matrix Completion Problem for 5×5 Matrices Specifying Cyclic Diagraphs with 5 Vertices and 4 Arcs. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 47, n. 2, p. 161–167, 2019. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10175. Acesso em: 28 apr. 2024.