Ghimire, B. D., Chapagain, N. P., Basnet, V., Bhatta, K. and Khadka, B. (2020) “Variation of GPS- Tec Measurements of the Year 2014: A Comparative Study with IRI - 2016 Model”, Journal of Nepal Physical Society, 6(1), pp. 90–96. doi: 10.3126/jnphyssoc.v6i1.30555.