Gaya APA

Babel, T, P, S, S, S. (2015). SOP Standard Operational Procedure (Cet. 1, 2015). Bangka: Shiddiq Press.

Gaya MLA

Babel, Tim, Penyusun, SOP, STAIN, SAS. "SOP Standard Operational Procedure". Cet. 1, 2015 Bangka: Shiddiq Press, 2015. Book.