De Vries, Mary Ann
Complete secretary's handbook
Prentice-Hall, 1991
 Buku Referensi
Webster's legal secretaries handbook
edited by Coleen K. Withgott, Austin G. Anderson
Merriam-Webster, 1981
 Buku Referensi
Pierce, Phyllis S.
The irwin investor's handbook 1996
Irwin, 1996
 Buku Referensi
Environmental, health, and safety auditing handbook
Lee Harrison, editor in chief
McGraw-Hill, 1995
 Buku Referensi
Supplement to the environmental, health, and safety auditing handbook
edited by Lee Harrison
McGraw-Hill, 1997
 Buku Referensi