Diagnose Insomnia by using Fuzzy Multiple Ordinal Logistic  Regression. Iraqi Statisticians journal, [S. l.], v. 3, n. 1, p. 202–231, 2026. DOI: 10.62933/azx8wg44. Disponível em: https://isj.edu.iq/index.php/isj/article/view/211. Acesso em: 9 apr. 2026.