Gaya APA

Stufflebeam, D, L., Shinkfield, A, J. (1984). Systematic Evaluation : A Self-Intructional Guide to Theory and Practice . USA: Kluwer-Nijhoff Publishing.

Gaya MLA

Stufflebeam, Daniel, L., Shinkfield, Anthony, J. "Systematic Evaluation : A Self-Intructional Guide to Theory and Practice". USA: Kluwer-Nijhoff Publishing, 1984. Text.