Gaya APA

Sistem Prosedur Retur Pembelian Toko Formula Prima Auto & Accessories Yogyakarta. (2017). Yogyakarta: AA YKPN.

Gaya MLA

Sistem Prosedur Retur Pembelian Toko Formula Prima Auto & Accessories Yogyakarta. . Yogyakarta: AA YKPN, 2017. .