WIRI, Leneenadogo; CHIMS, Benjamin Ele; SIBEATE, Uebari Pius. Intervention Modelling of Crude Oil Prices Using Pre- and Post-Transfer Function Models. Faculty of Natural and Applied Sciences Journal of Scientific Innovations , Port Harcourt, Nigeria, v. 6, n. 4, p. 109–118, 2025. DOI: 10.63561/fnas-jsi.v6i4.973. Disponível em: https://fnasjournals.com/index.php/FNAS-JSI/article/view/973. Acesso em: 6 oct. 2025.