Gaya APA

Subagyo, P. (1993). Dasar-Dasar Operations Reseach (ed.2, cet. 9). Yogyakarta: BPFE.

Gaya MLA

Subagyo, Pangestu. "Dasar-Dasar Operations Reseach". ed.2, cet. 9 Yogyakarta: BPFE, 1993. Text.