Hicks, Lanis L.
Jones & Bartlett Learning, 2014
Buku Teks
edited by Hoarst Noack
University Park Press , 1980
Buku Teks
Willis, Marjorie Canfield
J.B. Lippincott, 2008
Buku Teks
Hutagaol, David, examiner
McGraw-Hill Higher Education, 2008
Multimedia
Hutagaol, David, examiner
McGraw-Hill Higher Education, 2008
Multimedia