Riga, Liliana, 1962-
Cambridge University Press, 2012
Buku Teks
Kollmann, Nancy Shields
Oxford University Press, 2017
eBooks
Emerson, Rupert
Harvard Univ. Press, 1960
Buku Teks
Gregory, James S.
Penguin Books, 1946
Buku Teks
edited by Colin Mackerras
University of Hawaii Press, 1988
Buku Teks