Goren, Roberta
George Allen , 1985
Buku Teks
Pethybridge, Roger
Frederick A. Praeger, 1962
Buku Teks
edited Archie Brown and Jack Gray
Holmes & Meier, 1979
Buku Teks
Schapiro, Leonard
Frederick A. Praeger Publishers, 1965
Buku Teks
Wint, Guy
Frederick A Preager, 1958
Buku Teks