Amsterdam Royal Tropical Institue. Departement of Anthropology 1962
Buku Teks
London : Ditching Press Limited
Majalah, Jurnal, Buletin
Pelto, Pertti J, author
Cambridge University Press, 1978
eBooks
Pertti J, Pelto, author
Cambridge University Press, 2012
eBooks
Pelto, Pertti J.
Harper & Row, Publishers, 1970
Buku Teks SO