by Paul A. Bell ... [and others]
Wadsworth/Thomson Learning, 2001
Buku Teks SO
Paul A. Bell ... [and others]
Harcourt Brace College, 1996
Buku Teks SO
Bell, Paul A.
Thomson, 2001
Buku Teks SO
Nickerson, Raymon S.
Lawrence Erlbaum Associates, 2003
Buku Teks SO
edited by Linda Steg, Agnes E. van den Berg, Judith I.M. de Groo
BPS Blackwell, 2013
Buku Teks SO