GIKUNJU MURIUKI, David; KAMAKU WAWERU, Peter; WALI NZOMO, Augustus. Properties of the International Standard Serial Number. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 47, n. 1, p. 117–129, 2019. Disponível em: https://gssrr.org/JournalOfBasicAndApplied/article/view/10092. Acesso em: 13 sep. 2025.