Gaya APA

et.al., ., Subagyo, P. (2000). Dasar-Dasar Operation Research (Ed.2). Yogyakarta: BPFE.

Gaya MLA

et.al., ., Subagyo, Pangestu. "Dasar-Dasar Operation Research". Ed.2 Yogyakarta: BPFE, 2000. Teks.