Siemens, Nicolai,
Operations research: planning, operating and information systems
The Free Press , 1973
 Buku Teks
Siemens, Nicolai,
Operations research: planning, operating and information systems
The Free Press , 1973
 Buku Teks
The information systems research colloquium : qualitative research methods, vol. I
editors, James I. Cash and Paul R. Lawrence
Harvard Business School, 1989
 Buku Teks
Russell, Roberta S.
Operations management
Pearson Education, 2003
 Buku Teks
Russell, Roberta S.
Operations management : multimedia version
Prentice-Hall, 2000
 Buku Teks