Gaya APA
Christensen, Larry B.. (2013).
Research Methods, Design, and Analysis (Eleventh Edition).
Boston:
Pearson.
Gaya Chicago
Christensen, Larry B..
Research Methods, Design, and Analysis.
Eleventh Edition
Boston:
Pearson,
2013.
Buku.
Gaya MLA
Christensen, Larry B..
Research Methods, Design, and Analysis.
Eleventh Edition
Boston:
Pearson,
2013.
Buku.
Gaya Turabian
Christensen, Larry B..
Research Methods, Design, and Analysis.
Eleventh Edition
Boston:
Pearson,
2013.
Buku.