Gaya APA

Subagyo, P, D. (2005). Dasar-Dasar Operations Research (cet.4). YOGYAKARTA: BPFE.

Gaya MLA

Subagyo, Pangestu., Dkk. "Dasar-Dasar Operations Research". cet.4 YOGYAKARTA: BPFE, 2005. Text.