Helena
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1989
UI - Skripsi Membership
Blocker, John G.
McGraw-Hill, 1948
Buku Teks
Blocker, John G.
Tata McGraw-Hill, 1972
Buku Teks
Carter, William K., 1951-
Dame/Thomson Learning, 2002
Buku Teks
Cashin, James A.
McGraw-Hill, 1981
Buku Teks