Gans, Herbert J., author
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Buku Teks
Abrahamson, Mark, author
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Buku Teks
Beatley, Timothy, author
sland Press , 1997.
Buku Teks
editor, Edoardo Marcucci, Valerio Gatta, Michela Le Pira
Edward Elgar Publishing Limited, 2023
Buku Teks
edited by H.S. Geyer
Edward Elgar, 2011
Buku Teks