SADIQ, O. H. Analysis of Ozone Concentration in Wasit Governorate – Iraq Using Fuzzy Nonparametric Regression Estimation Methods. Khazayin of Economic and Administrative Sciences, [S. l.], p. 59–72, 2026. DOI: 10.69938/Keas.2603015. Disponível em: https://keas.uodiyala.edu.iq/index.php/kjeas/article/view/218. Acesso em: 17 apr. 2026.