APA Style
Siagian, P. (1987).
Penelitian Operasional .
:
UI PRESS.
Chicago Style
Siagian, P.
Penelitian Operasional.
:
UI PRESS,
1987.
.
MLA Style
Siagian, P.
Penelitian Operasional.
:
UI PRESS,
1987.
.
Turabian Style
Siagian, P.
Penelitian Operasional.
:
UI PRESS,
1987.
.