Hankooko 3
Maanjinmedia, 2007
Buku Teks
Hankooko 1
Maanjinmedia, 2007
Buku Teks
Hankooko 2
Maanjinmedia, 2007
Buku Teks
The Encyclopedia of philosophy: volumes 3 and 4
editor, Paul Edwards
MacMilan, 1972
Buku Referensi
Meade, Richard A.
Effective English: workbook 3 and 4
Belmont, 1964
Buku Teks SO