edited by Marc-David L. Seidel, Henrich R. Greve
Emerald, 2017
eBooks
Blackmore, Susan
New york, 2005
Buku Teks
Pfeiffer, John E.
Harper & Row, 1969
Buku Teks
Ullmann-Margalit, Edna
Clarendon Press, 1977
Buku Teks SO
by A.D. Cliff ... [and others]
Oxford University Press, 2010
Buku Teks SO