Keokhumcheng, T., Phothila, P., Maichuen, S., Buakao, N., Zhang, J., & Kenpankho, P. (2026). Total Electron Content Fluctuations and Their Implications for GPS Signal Delay over Thailand: Insights from Low Latitudes during the Ascending Phase of Solar Cycle 25. Annals of Geophysics, 69(2), SA218. https://doi.org/10.4401/ag-9441