Goodman-Stephens, Bryan
Zickzack: lehrbuch 1, 2
E.J. Arnold, 1987
 Buku Teks SO
Finley, Kay Thomas
Triazoles: 1, 2, 3
John Wiley & Sons, 1980
 Buku Teks
Kim, Yong Deok
Bulgyeo Iyagi. 1, 2
Chang Jak iwa BT byeongsa, 1997
 Buku Teks
The encyclopedia of philosophy: volumes 1 and 2
editor, Paul Edwards
MacMilan, 1972
 Buku Referensi
Gon, Tae-son
Grece Roma Shinhwa, 1- 2
Chang Jak iwa BT pyeong Sa, 1999
 Buku Teks