Wavelet analysis based VTEC variability over mid-latitude region Sukkur, Pakistan and its comparison with IRI models during 2019-2020. Natural and Applied Sciences International Journal (NASIJ), Peshawar, Pakistan, v. 3, n. 1, p. 13–33, 2022. DOI: 10.47264/idea.nasij/3.1.2. Disponível em: https://ideapublishers.org/index.php/nasij/article/view/732. Acesso em: 16 nov. 2025.