Lodico, Marguerite G.
Methods in educational research : from theory to practice
Jossey-Bass, 2010
Buku Teks
Stake, Robert E.
The Art of case study research / Robert E. Stake
Sage Publications, 1995
Buku Teks
Clough, Peter
A student's guide to methodology : justifying enquiry
Sage Publications, 2002
Buku Referensi
Fraenkel, Jack R., 1932-2014
How to design and evaluate research in education
McGraw-Hill, 1993
Buku Teks
Foundations for research: methods of inquiry in education and the social sciences
New jersey, 2004
Buku Teks