Doob, Leonard William, 1909-
Communication in Africa: a search for boundaries
Yale University Press, 1961
 Buku Teks
Exploring the boundaries of landscape architecture
edited by Simon Bell, Ingrid Sarlov Herlin, Richard Stiles
Routledge, 2012
 Buku Teks
Richmond, Wendy
Design & technology: erasing the boundaries
Van Nostrand Reinhold, 1990
 Buku Referensi
Prince, Thomas R.
Extension the boundaries of accounting theory
South-Western Publishing, 1963
 Buku Teks
Arlette Otino
Ritual subordination to the core-line and bali aga cultural identity: some preliminary research notes on the kabayan of gunung batukau / Arlette Otino
2004
 Artikel Jurnal