edited by Poedjosoedarmo Gloria
SEAMEO Regional Language Centre, 2005
Buku Teks
Fairbairn, Gavin, author
McGraw-Hill, 2012
Buku Teks
Bagnall, Roger S.,
Routledge, 1995
Buku Teks
Rosenberg, Vivian M., author
Buku Teks
Goatly, Andrew, author
Routledge , 2000
Buku Referensi