edited by Jens Bennedsen, Michael E. Caspersen, Michael Kolling
Springer, 2008
Buku Teks
Foreword by Wong Lian Aik
Center for English Language Communication. NUS, 2001
Buku Teks
edited by, J.A. Campbell
Ellis Horwood Limited, 1984
Buku Teks
Artikel Jurnal
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