Halliday, M.A.K.
Spoken and written language
Oxford University Press, 1989
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Baron, Naomi S.
Alphabet to email : how written english evolved and where it's heading
Routledge , 2001
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Clark, Romy
The politics of writing
Routledge, 1997
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Harris, Roy
Signs of writing
Routledge, 1995
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Rifki Feriandi
Cara narsis bisa nulis
Peniti media, 2014
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