Gaya APA

dkk, A, M, S, M. (2011). OPERATIONS RESEARCH (RISET OPERASI) . Regina, Saskatchewan.: UR PRESS.

Gaya MLA

dkk, Astuti, Meflinda,, SE,, MM. "OPERATIONS RESEARCH (RISET OPERASI)". Regina, Saskatchewan.: UR PRESS, 2011. Text.