OPEC : official resolutions and press releases 1960-1990
James Audu
Australia : OPEC, 1996,
Buku Referensi
Eisenberg, Melvin A.
Corporations and other business organizations : cases and materials
Foundataion Press, 2000
Buku Teks
Bazant, Zdenek P.
Fracture and size effect in concrete and other quasibrittle materials
CRC Press, 1998
Buku Teks
Eisenberg, Melvin A.
Corporations and other business organizations : cases and materials
Foundation Press, 2005
Buku Teks
Reviews of independent press book in counterpoise and other publications Juris Dilevko,Keren Dali
Artikel Jurnal