Billings, Keith H., author
Van Nostrand Reinhold, 1993
Buku Teks
Billings, Keith H., author
Van Nostrand Reinhold, 1993
Buku Referensi
Khan, Ayub, author
Faced Publishing, 2009
Buku Teks
Bailliere Tindall, 1996
Buku Teks
edited by Dianne Watkins
Bailliere Tindall, 2003
Buku Teks