MODELLING TIMES SERIES VOLATILITY: A CASE STUDY OF NIGERIA ECONOMIC VARIABLES. FULafia Journal of Science and Technology , [S. l.], v. 9, n. 2, p. 23–30, 2025. DOI: 10.62050/fjst2025.v9n2.614. Disponível em: https://lafiascijournals.org.ng/index.php/fjst/article/view/614. Acesso em: 15 jul. 2026.