APA Style
SIAGIAN,P. (1987).
PENELITIAN OPERASIONAL .
JAKARTA:
UI-PRESS.
Chicago Style
SIAGIAN,P.
PENELITIAN OPERASIONAL.
JAKARTA:
UI-PRESS,
1987.
Text.
MLA Style
SIAGIAN,P.
PENELITIAN OPERASIONAL.
JAKARTA:
UI-PRESS,
1987.
Text.
Turabian Style
SIAGIAN,P.
PENELITIAN OPERASIONAL.
JAKARTA:
UI-PRESS,
1987.
Print.