AL-MAYAHI, Noori F.; RADHI, Intisar H. On Fuzzy Co-Pre-Hilbert Spaces. Journal of Kufa for Mathematics and Computer, Kufa, Najaf, IRAQ, v. 1, n. 7, p. 1–6, 2013. DOI: 10.31642/JoKMC/2018/010701. Disponível em: https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2199. Acesso em: 26 jun. 2026.