Ansyah, Habri, 		Djayus, Djayus, AND 		Supriyanto, Supriyanto.
" Studi Penentuan Percepatan (Acceleration) Tanah Daerah Ampana, Balikpapapan, Bone, Bulukumba, Bau-Bau Akibat Gempabumi Donggala 28 September 2018" <em>GEOSAINS KUTAI BASIN</em> [Online], Volume 4 Number 1 (12 August 2021)