Saunders, Mark
Research methods for business students
Prentice-Hall, 2003
Buku Teks
Saunders, Mark
Research methods for business students
Pearson Education, 2016
Buku Teks
Wiersma, William
Research methods in education: an introduction
Pearson/Allyn and Bacon, 2005
Buku Teks
Wiersma, William
Research methods in education : an introduction
Pearson, 2009
Buku Teks
Barker, Chris
Research methods in clinical and counselling psychology
John Wiley & Sons, 1994
Buku Teks SO