Kastantin, Joseph T., author
Professional accounting practice management
Quorum Books, 1988
 Buku Teks
Joseph, William, author
Professional service management
McGraw-Hill, 1983
 Buku Teks
Knowledge management for the information professional
T. Kanti Srikantaiah, Michael E.D. Koenig, editor
Information Today, 2000
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Delong, Thomas, author
Professional services : text and cases
McGraw-Hill Irwin, 2003
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Hansen, Helen F.
Professional relationships of the Nurse
W.B. Saunders Company, 1947
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