Valin, Robert D. van, author
Cambridge University Press, 2005
Buku Teks
Gruber, Jeffrey S.
North-Holland , 1976
Buku Teks
Williams, Alexander, author
Cambridge University Press, 2015
eBooks
Moot, Richard, editor
[, Springer-Verlag], 2012
eBooks
Kuno, Susumu, 1933-, author
Pagijong Press, 2004
Buku Teks