Chatterjee S, Purohit PK. Effect of Ionospheric Perturbation on GPS Observation over Low Latitude Region, Bhopal. J. Sci. Res. [Internet]. 2012 Aug. 28 [cited 2024 Nov. 23];4(3):577-8. Available from: https://banglajol.info/index.php/JSR/article/view/10146