Indonesian Oil and Gas, 2002
Buku Referensi
Indonesian Oil & Gas Online, 2001
Buku Referensi
The IOG chronicle
Prosinergi Multitama, 2002
Buku Referensi
Iogonline
Indonesia oil & Gas, 2001
Buku Teks
Indonesian Oil & Gas Online
Indonesian Oil & Gas Online, 2001
Buku Referensi