Atwood, Margaret
McClelland and Stewart, 1981
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White, Stephen
A Signet Book, 1996
Buku Teks SO
Margaret Greenfields, Roger Dalrymple, Agnes Fanning, editors
McGraw-Hill Open university press, 2012
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Moss, Geoffrey
Management House, 1990
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Assyifa Pangestuti
Fakultas Ilmu Sosial Dan Ilmu Politik Universitas Indonesia, 2024
UI - Tugas Akhir