Gaya APA

Wallen, N, E., Fraenkel, J, R. (2009). How to design and evaluate research in education (7th). New York: McGraw-Hill Higher Education.

Gaya MLA

Wallen, Norman, E.., Fraenkel, Jack, R.. "How to design and evaluate research in education". 7th New York: McGraw-Hill Higher Education, 2009. Buku.