Marbun, Meyliza, 		Supriyanto, Supriyanto, AND 		Rinaldi, Aditya.
" IDENTIFIKASI LAPISAN PENYEBAB LONGSOR MENGGUNAKAN GROUND PENETRATING RADAR AREA MONUMEN PESAWAT SANGATTA PT. KALTIM PRIMA COAL" <em>GEOSAINS KUTAI BASIN</em> [Online], Volume 3 Number 2 (28 August 2020)