Anderson, J. M., editor
CAB International, 1993
Buku Referensi
edited by Ejup N. Ganic, Tyler G. Hicks
McGraw-Hill, 1991
Buku Teks
David Linden, editor in chief
McGraw-Hill, 1995
Buku Referensi
Korean Overseas Information Service, 1993
Buku Referensi
Sprague, Jo, author
Wadsworth/Cengage Learning, 2013
Buku Teks