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Routledge, Taylor & Francis Group, 2017
Buku Teks
Halliday, Fred, author
Cambridge University Press, 2005
Buku Teks
Habil Subarqah, author
2018
UI - Tugas Akhir
Ceilla Ayu Putri Hasri, author
Univesitas Indonesia. Fakultas Ilmu Sosial Dan Politik, 2018
UI - Tugas Akhir