Ball, Martin J., author
Lawrence Erlbaum Associates, 2005
Buku Teks
edited by Nicole Muller and Martin J. Ball
Wiley-Blackwell, 2013
Buku Teks
edited by Bertil Malmberg
North-Holland, 1968
Buku Teks
Gillam, ronald B., author
Jones and Bartlett Learning, 2011
Buku Teks
Laver, John, author
Cambridge University Press, 1995
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