Warren, Bill
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Buku Teks
Kelly, George Alexander
Routledge in Association with the Centre for Personal Construct Psychology , 1991
Buku Teks
edited by W. Bruce Walsh
Lawrence Erebaum Associates Publishers, 2006
Buku Teks
Richards, R. Malcolm
Scott, Foresman, 1984
Buku Teks
Unger, Maurice A.
Allyn and Bacon, 1969
Buku Teks