Bob Hering, author
Kompas Media Nusantara, 2012
Buku Teks
Hering, Bob, author
Leiden KITLV Press 2002
Buku Teks
MacEwan, Grant, author
Western Producer Prairie Books , 1977
Buku Teks
Messing, Bob
Pustaka Binaman Pressindo, 1996
Buku Teks
Bob, Clifford, author
Cambridge University Press, 2005
Buku Teks