Lubis, Syahron
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Suhardi, author
AR-RUZZ MEDIA, 2016
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Saussure, Ferdinand de, author
Gadjah Mada University Press , 1993
Buku Teks
Verhaar, J.W.M., author
Gajah Mada University Press, 1992
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Abdul Chaer, 1942-, author
Rineka Cipta, 2003
Buku Teks