Bulo, Deni, 		Djayus, Djayus, AND 		Supriyanto, Supriyanto.
" PENENTUAN TITIK EPICENTER DAN HYPOCENTER SERTA PARAMETER MAGNITUDE GEMPABUMI BERDASARKAN DATA SEISMOGRAM" <em>GEOSAINS KUTAI BASIN</em> [Online], Volume 3 Number 1 (19 February 2020)