Prihantoro, R., Sutarno, D. and Nurhasan, N. 2019. Direct Method Solution of 3-D Magnetotelluric Modeling Using Vector Finite Element Method. Journal of Mathematical and Fundamental Sciences. 51, 1 (Apr. 2019), 77-89. DOI:https://doi.org/10.5614/j.math.fund.sci.2019.51.1.7.