Eric, Bidet
Nunbit, 2003
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Song, Nak-won
Communication Books (Ju), 2008
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Pak, Song-sil
Tanguk Taehakkyo Chulpanbu , 2005
Buku Referensi
Jang, Yong-jun
Doseo Chulphan Buamentho, 2010
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Redita Devi
2016
UI - Skripsi (Membership)