APA Style

Assegaff, D. et al (2006). Operations management (manajemen operasi)jilid 1 (7). : Salemba empat.

MLA Style

Assegaff, Drs.. et al. "Operations management (manajemen operasi)jilid 1". 7 : Salemba empat, 2006. Buku PGSD.