Russell, Roberta S.
Operations management. 3rd edition.
Prentice-Hall, 2000
 Multimedia
Russell, Roberta S.
Operations management. 3rd edition.
Prentice-Hall, 2000
 Multimedia
Gates, Jean Key
Guide to the use of libraries and information sources : seventh edition
McGraw-Hill, 1994
 Buku Referensi
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