Freedman, Ronald, author
Irvington, 1975
Buku Teks
Clamp, Cynthia G. L., author
Sage, 1999
Buku Teks
Farmer, Henry George
Issued Privately by The Author, 1940
Buku Teks
Patai, Raphael
Hraf Press , 1957
Buku Teks
Salmon, Claudine, author
Editions de la Maison des sciences de l'homme, 1981
Buku Referensi