Artikel Jurnal
Deanna B. Marcum, editor
Greenwood Press, 2001
Buku Teks
Dahl, Mark, author
Chandos Publishing, 2006
Buku Teks
Donatella Castelli; Bolette Ammitzboll Jurik; Joan Lippincott, editor
Springer, 2008
Buku Teks
Donatella Castelli; Bolette Ammitzboll Jurik; Joan Lippincott, editor
Springer, 2008
Buku Teks