MUTEMBEI, Josephine; KIVUNGE, Benard; KAMAKU, Waweru. Positive Matrix Completion Problem for Digraphs of Order 3 with 4 and 5 Arcs. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 28, n. 3, p. 75–81, 2016. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/5903. Acesso em: 19 may. 2026.