Griffths, Patrick, author
Edinburgh University Press, 2006
Buku Teks
Vaizey, John
Gunung Agung, 1974
Buku Teks
Noth, Winfried, author
Airlangga University Press, 2006
Buku Teks
Brim, John A.
Holt, Rinehart and Winston, 1974
Buku Teks
Cruse, Alan, author
Oxford University Press, 2013
Buku Teks