Gruber, Jeffrey S.
North-Holland , 1976
Buku Teks
Zsiga, Elizabeth C., author
West Sussex Wiley-Blackwell, 2013
Buku Teks
editor, Monique Lamers, Peter de Swart
Springer, 2012
eBooks
Cambridge University Press, 2007
eBooks
Hoenigswald, Henry M.
University of Chicago Press , 1960
Buku Teks