Takana A, Ahmed B, Fimba DE. Evaluation of GNSS Observation Timing using Dilution of Precision and Satellite Visibility Analysis in North-East, Nigeria. JSIS [Internet]. 2026 Jun. 30 [cited 2026 Jul. 14];3(1):277-89. Available from: https://journals.unizik.edu.ng/jsis/article/view/8384