Ellis, Harry B., author
World Pub., 1965
Buku Teks
Bemis, Samuel Flagg, 1891-1973, author
Holt, Rinehart and Winston, 1965
Buku Teks
Westview Press, 1980
Buku Teks
Bemis, Samuel Flagg, 1891-1973, author
Harcourt, Brace, 1943
Buku Teks
Monica Dian Adelina, author
2012
UI - Tesis (Open)