Mustika Bohal, Y. ., M. M, and W. Utama. “APPLICATION OF UPWARD CONTINUATION FILTER FOR GEOMAGNETIC DATA INTERPRETATION IN GONDANG, BOJONEGORO AREA”. Journal of Marine-Earth Science and Technology, vol. 1, no. 1, Nov. 2021, pp. 1-7, doi:10.12962/j27745449.v1i1.152.