Chaika, Elaine, author
Whurr Publishers, 2000
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Verschueren, Jef, author
Oxford University Press, 1999
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Levinson, Stephen C., author
Cambridge University Press, 1983
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Ahmad Hamidi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2020
UI - Tesis (Membership)
Grundy, Peter F., author
Edward Arnold, 1995
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