Farquhar, Francis P.
University of California Press, 1965
Buku Teks
edited by Georg Langs
Springer, 2012
eBooks
Farmer, Albert John, author
British Council by Longmans, Green, 1966
Buku Teks
Nichols, J. P.
etc. : Appleton,
Buku Teks
Lathrap, Donald W.
[T.t.] [T.p.] 1955
Buku Teks