Lasisi, Lawal S., Li Dongjun, and Chatwin R. Chris. “Nigcomsat-1R Satellite-Based Augmentation System(SBAS) Test Bed Trial: A Scientific Explanation”. Recent Developments in Engineering Research Vol. 11 (February 17, 2021): 75–85. Accessed June 12, 2026. https://stm.bookpi.org/RDER-V11/article/view/217.