Gaya APA

Putra, I, M. (2020). PANDUAN MUDAH MENYUSUN SOP (Standard Operating Peocedure) . Yogyakarta: QUADRANT.

Gaya MLA

Putra, Indra, Mahardika. "PANDUAN MUDAH MENYUSUN SOP (Standard Operating Peocedure)". Yogyakarta: QUADRANT, 2020. Text.