Ainsworth, Peter B.
Pearson Educatios, 2000
Buku Teks
Berger, Peter L.
Allen Lane, 1966
Buku Teks
Margit E. Oswald, Steffen Bieneck, author
Wiley-Blackwell, 2009
Buku Teks
Bless, Herbert
Psychology Press,, 2004
Buku Teks
Bless, Herbert
Psychology Press, 2004
Buku Teks