Kiss, Tibar
Akademiai Kiado, 1971
Buku Teks
Childe, V. Gordon, author
Melbourne University Press, 1964
Buku Teks
International Labour Office Indian Branch, 1951
Buku Teks
Jane Hutchison, Andrew Brown
Routledge, 2001.
Buku Teks
Mackay, Ross, author
Avebury , 1989
Buku Teks