Roth, Audrey J., author
Wadsworth, 1995
Buku Teks
Mahmoud, Shah, author
Betterway, 1992
Buku Referensi
Sutrisno Hadi, author
Fakultas Psikologi UGM, 1989
Buku Teks
Lester, James D.
Scott, Foresman and Company, 1967
Koleksi Publik
Lester, James D.
Scott, Foresman and Company, 1987
Buku Teks