Riesenfeld, Stefan A.
Carnegie Endowment for International Peace, 1942
Buku Teks
Winship, Peter
St.paul Minn, 2000
Buku Teks
Spanogle, John A.
St. Paul Minn, 2000
Buku Teks
Leonard, Leonard L. (Leonard Larry), 1916-
Johnson Reprint Corporation, 1971
Buku Teks
Guruswamy, Laskshman
[Publisher not identified], 1994
Buku Teks