Amalu , H.I. , Ukwueze , T.N. , Olife, L. U. and Irokwe, .F.F. 2020. Product Tax Revenue and Economic Growth in Nigeria: An Engle-Granger Approach, Evidence From 1981 - 2019. Journal of Advanced Research in Economics and Administrative Sciences. 1, 2 (Nov. 2020), 66-76. DOI:https://doi.org/10.47631/jareas.v1i2.111.