Haftman, Werner, author
Frederick A. Praeger, Pub., 1960
Buku Referensi
Chandra, Moti
The U. P. Historical Society Provincial Museum, 1949
Buku Teks
Askeland, Jan
Office of Cultural Relations, 1954
Buku Teks
Reed, John, 1901-1981
Longman, 1965
Buku Teks
Haftman, Werner, author
Frederick A. Praeger, Pub., 1960
Buku Referensi