BELLO, A.; TASI’U, M.; DIKKO, H.G.; ALHAJI, B.B. On the Spectral Density of the Modified-ARFIMA Model. Journal of the CISON, Abuja, NG, v. 36, n. 1, p. 47–56, 2024. DOI: 10.63255/03-4756.24/05. Disponível em: https://journal.cison.org.ng/index.php/jotc/article/view/5. Acesso em: 27 oct. 2025.