Gaya APA

Yin, R, K. (2016). Quality research from start to finish 2nd ed (2nd ed.). New York, NY: The Guilford Press, c.

Gaya MLA

Yin, Robert, K.. "Quality research from start to finish 2nd ed". 2nd ed. New York, NY: The Guilford Press, c, 2016. Buku Wajib.