Gaya APA
Tampubolon, M, P., Sikumbank, R, F. (2004).
Manajemen operasional = operations management .
Jakarta:
Ghalia Indonesia.
Gaya MLA
Tampubolon, Manahan, P.., Sikumbank, Risman, F..
"Manajemen operasional = operations management".
Jakarta:
Ghalia Indonesia,
2004.
Text.