Lee, Kyung Ja, author
Ewha Womans University Press, 2005
Buku Teks
Yi, Kyong-ja, 1938-, author
Ihwa Yoja Taehakkyo Chulpanbu, 2005
Buku Teks
Stevenson, Maggie, author
Page one Publishing, 2002
Buku Referensi
edited by Andreas C. Papadakis
VCH Publishers,
Buku Referensi
Fryske, Akademij
Provinciaal Bestuur, [date of publication not identified]
Buku Teks