Garbade, Kenneth
McGraw-Hill , 1982
Buku Teks
William, R., author
Elseiver, 2012
Buku Teks
Williams, R. Tee, author
Elsevier , 2011
Buku Teks
Saunders, Anthony, author
McGraw-Hill Education, 2015
Buku Teks
Universitas Indonesia, 2006
UI - Skripsi (Membership)