Management research : a cross-cultural perspective/ edited by Dismond Graves
Elsevier, 1973
 Buku Teks
Cooper, Donald R.
Business research methods
McGraw-Hill, 2006
 Buku Teks
Cooper, Donald R.
Business research methods
Irwin/McGraw-Hill, 1998
 Buku Teks
Cooper, Donald R.
Business research methods
McGraw-Hill, 1998
 Buku Teks
Cooper, Donald R.
Business research methods
McGraw-Hill, 2001
 Buku Teks