Siagian, Reinhard, author
2000
UI - Tesis (Membership)
edited by Carmen de Jong, David Collins, Roberto Ranzi
John Wiley & Sons, 2005
Buku Teks
Artikel Jurnal
Harahap, B. H.
Pusat Survai geologi Bandung, 2011
Artikel Jurnal
Jacobsen, Dean, author
Oxford University Press, 2017
eBooks