Khasanah, Ulfiatul, Supriyanto Supriyanto, & Djayus Djayus. " ANALISIS NILAI LOG GAMMA RAY DAN LOG DENSITY TERHADAPVARIASI KECEPATAN PEREKAMAN METODE WELL LOGGING “ROBERTSON GEOLOGGING (RG)”." GEOSAINS KUTAI BASIN [Online], 2.1 (2019): n. pag. Web. 5 May. 2024