Saputra, Hendra, 		Siringorongo, Luhut, 		Suhendi, Cahli, AND 		Agustina, Lea.
" Identifikasi Struktur Geologi dan Petrografi di sekitar Observatorium Astronomi Lampung Gunung Betung" <em>Journal of Science and Applicative Technology</em> [Online], Volume 4 Number 2 (20 December 2020)