Thammaboribal, P., N. Tripathi, and S. Lipiloet. “Pre-Seismic Signature Detection Using Diurnal GPS-TEC and Kriging Interpolation Maps (ASK-VTEC Technique): 11 May 2011, M9.0 Tohoku Earthquake Case Study”. International Journal of Geoinformatics, vol. 20, no. 11, Nov. 2024, pp. 148-61, doi:10.52939/ijg.v20i11.3715.