Akpan, Emmanuel Alphonsus, Imoh Udo Moffat, and Ntiedo Bassey Ekpo. “Arma-Arch Modeling Of The Returns Of First Bank Of Nigeria”. European Scientific Journal, ESJ 12, no. 18 (June 29, 2016): 257. Accessed May 7, 2024. https://eujournal.org/index.php/esj/article/view/7613.