Ziggah, Y.Y., Youjian, H., Odutola, C.A. and Nguyen, T.T. 2013. ACCURACY ASSESSMENT OF CENTROID COMPUTATION METHODS IN PRECISE GPS COORDINATES TRANSFORMATION PARAMETERS DETERMINATION - A CASE STUDY, GHANA. European Scientific Journal, ESJ. 9, 15 (May 2013). DOI:https://doi.org/10.19044/esj.2013.v9n15p%p.