Directory Indonesian Oil & Gas Procurement
Iogonline
Indonesia oil & Gas, 2001
 Buku Teks
Indonesian oil & gas procurement directory 2001
Indonesian Oil & Gas Online
Indonesian Oil & Gas Online, 2001
 Buku Referensi
Indonesian Oil & Gas Directory 2002
The IOG chronicle
Prosinergi Multitama, 2002
 Buku Referensi
The future of gas and oil from the sea
edited by Gerard J. Mangone
Van Nostrand Reinhold, 1983
 Buku Teks
Indonesian oil and gas directory 2002/Indonesian Oil and Gas
Indonesian Oil and Gas, 2002
 Buku Referensi