<SIAGIAN, P. Penelitian operasional ; teori & praktek. LPFE-UI / UI Press.
Chicago Style Citation<SIAGIAN, P.>. Penelitian Operasional ; Teori & Praktek. LPFE-UI / UI Press.
MLA Citation<SIAGIAN, P.>. Penelitian Operasional ; Teori & Praktek. LPFE-UI / UI Press.
Warning: These citations may not always be 100% accurate.