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Buku Teks
Morgan, John, 1944-2004
Oxford University Press, 1990
Buku Teks SO
edited by Laura Nader
Berkeley University of California , 1997
Buku Teks
edited by Richard Maidment and Colin Mackerras
Routledge, 1998
Buku Teks
edited by Laura Nader
Aldine, 1969
Buku Teks