Gaya APA

Wallen, J, R, F, N, E. (). How to Design and Evaluate Research in Education (7). : McGraw-Hill Companies, Inc..

Gaya MLA

Wallen, Jack, R., Fraenkel,, Norman, E.. "How to Design and Evaluate Research in Education". 7 : McGraw-Hill Companies, Inc., . e-Book Pendidikan Bahasa Inggr.