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Buku Teks
Philips, Julia, author
Random House, 1991
Buku Teks
Florentine Natasha, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2013
UI - Skripsi Membership
Diah Wahyuningrum, author
2016
UI - Skripsi Membership
D. Zawawi Imron, author
Universities Muhammadiyah Malang, 2916
Buku Teks