Brady, George S.
McGraw-Hill, 1986
Buku Referensi
Brady, George S., author
McGraw-Hill, 1997
Buku Referensi
Purba G., Edward Hasoloan, author
Universitas Indonesia, 2001
UI - Tesis (Membership)
Brady, George S.
McGraw-Hill, 1979
Buku Referensi
Brady, George S.
McGraw-Hill, 1979
Buku Referensi