Napitupulu, Daniel
Goodwill hunting
2004
Artikel Jurnal
Coyne, John
The hunting season
Macmillan, 1987
Buku Teks SO
Taylor, Andrew
The cool Change
University of Queensland Press, 1971
Buku Teks SO
Goldmann, Nahum
Online information hunting
McGraw-Hill, 1992
Buku Teks SO
Downes, Colm
Cambridge english for job hunting
Cambridge university press, 2009
Buku Teks