Griswold, Alfred Whitney, 1906-1963, author
Brace, 1939
Buku Teks
Frei, Daniel, author
Schweizer Kulturstiftung, 1983
Buku Teks
Chubin, Shahram
New York Oxford University Press 1996,
Buku Teks
Saito, Hirosi
Boston Marshall Jones 1935
Buku Teks
Tokyo : Hogaku-Shirin Kyokai
Majalah, Jurnal, Buletin