Etim Akpan, P. ., and O. . Ibanga. “DEVELOPING A GIS-BASED COMPOSITE WALKABILITY INDEX USING OPEN GEOSPATIAL DATA AND FIELD MEASUREMENTS IN UYO URBAN AREA, NIGERIA”. BW Academic Journal, June 2026, https://mail.bwjournal.org/index.php/bsjournal/article/view/4047.