Sarpong, Adu-Manu Kofi, Abraham Bamfo Boakye, Abraham Amponsah, and Clement Yeboah. 2013. “Analytic Study Of The Trend Of Ghanas GDP Before And After Re-Basing”. International Business & Economics Research Journal (IBER) 12 (3):301-10. https://doi.org/10.19030/iber.v12i3.7673.