Victus N. Uzodinma, and Uchechukwu Nwafor. “Degradation of GNSS Accuracy by Multipath and Tree Canopy Distortions in a School Environment: A Recent Study”. Challenging Issues on Environment and Earth Science Vol. 4, June 2021, pp. 68-77, doi:10.9734/bpi/ciees/v4/9395D.