Yoshino, Michael Y.
MIT Press, 1968
Buku Teks SO
Keitaro Hasegawa
Kodansha International, 1986
Buku Teks SO
Takagi, Haruo
UMI Research Press, 1984
Buku Teks SO
Kenichi Ohmae
McGraw-Hill , 1982
Buku Teks
Furstenberg, Friedrich
Leviathan House, 1974
Buku Teks