J. Ibrahim, “MATHEMATICAL KNOWLEDGE IN NIGERIAN INDIGENOUS BUILDING AND TRADE PRACTICES: EVIDENCE FROM SIX GEOPOLITICAL ZONES”, iijp, vol. 2, no. 3, pp. 887–900, Aug. 2026, Accessed: Nov. 09, 2026. Available: https://impactinternationaljournals.com/index.php/ojs/article/view/653