Guma E, Haruna AA, Idoko OF, Salihu A. Analyzing the Smartphone-Based 3rd order 2D Positioning: A cost-effective Alternative for mapping and Geospatial Data Acquisition. NuCE [Internet]. 2026Jun.18 [cited 2026Jul.4];5(1):45-. Available from: https://ojs.poltekba.ac.id/ojs/index.php/nuce/article/view/716