Metcalf, Richard W.
Instructor's manual to accompany : principles of accounting : Walgenbach, Hanson, Hamre : fifth edition
Harcourt Brace Jovanovich, 1990
 Buku Teks
Posey, Imogene A.
Study guide to accompany : principles of accounting : Walgenbach, Hanson, Hamre : fifth edition / Imogene A. Posey
Harcourt Brace Jovanovich, 1990
 Buku Teks
Bragg, Steven M.
Accounting policies and procedures manual: a blueprint for running an effective and efficient department
John Wiley & Sons, 2007
 Buku Referensi
Marketing handbook
edited by Michael Rines
Gower in Association with Marketing Magazine, 1981
 Buku Teks
Coulmas, Florian
The handbook of sociolinguistics
Blackwell Publishers, 1998
 Buku Teks