Keene, Donald
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Buku Teks
Allen, Lynne
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Buku Teks
Edited by Nadia Amoroso
Routledge, cop, 2012
Buku Teks
Eissen, Koos
Page one publishing pte ltd, 2011
Buku Teks
Sara Holder by editor
Information Science Reference, 2013
Buku Teks