Nnamchi, S. N., Jagun, Z. O., Ijomah, M. A., Nnamchi, O. A., & Busingye, J. D. (2022). Time Series Analysis of Global Energy Indices: Logarithmic and Normalized Techniques for Developmental Studies. Energy Economics Letters, 9(1), 1–19. https://doi.org/10.18488/5049.v9i1.4396