Jesus Romero-Trillo, editor
Springer, 2012
eBooks
Ron White...[et al.]
Cambridge University Press , 1991
Buku Teks
Fries, Charles Carpenter
University of Michigan Press, 1951
Buku Teks
The Chinese University Press, 1996
Majalah, Jurnal, Buletin
Foreword by Wong Lian Aik
Center for English Language Communication. NUS, 2001
Buku Teks