SAAD, najlaa; HUSEEN, hashim. Identification of Transformation Function Models for OPEC Crude Oil Prices. IRAQI JOURNAL OF STATISTICAL SCIENCES, [S. l.], v. 19, n. 1, p. 67–75, 2022. DOI: 10.33899/iqjoss.2022.0174333. Disponível em: https://tanmiyat.uomosul.edu.iq/index.php/stats/article/view/29443. Acesso em: 6 sep. 2025.