Parker, George E.
Handbook of model letters & memos for engieners,scientists and technical professionals
Prentice-Hall, 1988
Buku Referensi
Brady, George S.
Materials handbook: an encyclopedia for managers, technical professionals, purchasing and production managers, technicians, supervisors, and foremen
McGraw-Hill, 1997
Buku Referensi
Poe, Roy W.
The McGraw-Hill handbook of business letters
McGraw-Hill, 1988
Buku Teks
Seglin, Jeffrey L.
The AMA handbook of business letters
[American Management Association, American Management Association], 2002
eBooks
Mauch, James E.
Guide to the successful thesis and disertation : a handbook for students and faculty / James E. Mauch, Jack W. Birch
Marcel Dekker, Inc., 1993
Buku Teks