Gates, Jean Key
Guide to the use of libraries and information sources : seventh edition
McGraw-Hill, 1994
 Buku Referensi
Kay, Michael H.
Information management
Prentice-Hall, 1993
 Buku Teks
Kotler, Philip
Marketing management : analysis, planning, and control : sixth edition
Prentice Hall of India, 1988
 Buku Teks
Kotler, Philip
Marketing management : analysis, planning, and control : fifth edition
Prentice Hall International, 1984
 Buku Teks
Hopp, Wallace J.
Factory physics: foundation of manufacturing management second edition
McGraw-Hill, 2000
 Buku Teks