Farbey, A.D., author
Gramedia Pustaka Utama, 1997
Buku Teks
Farbey, A.D., author
Gramedia Pustaka Utama, 1997
Buku Teks
S. Mulyatno, author
Lembaga Administrasi perusahaan FE Univ. Trisakti, [date of publication not identified]
Buku Teks
Stanley Bratawira, author
Fakultas Psikologi Universitas Indonesia, 1981
UI - Skripsi Membership
Ogilvy, David, author
Pustaka Tangga, 1963
Buku Teks