Gaya APA

Subagyo, P., Asri, M. (2012). Dasar-Dasar Operations research (2). Yogyakarta: BPFE-Yogyakarta.

Gaya MLA

Subagyo, Pangestu., Asri, Marwan. "Dasar-Dasar Operations research". 2 Yogyakarta: BPFE-Yogyakarta, 2012. Text.