20 Segi hanguk soseul 38 : Gamyeon, angae neo meo cheong jinhan2, ...
Lee Gyeong Ja, Yu Shi Chun, Kang Seok Kyeong
Changbi, 2008
 Buku Teks
20 Segi hanguk soseol 38: Lee Gyong sa yu si chun jang sog gyong jim hyang sug yang gwaja yon song mo
Chang bi, 2006
 Buku Teks
Pickard, J. D., editor
Advances and technical standards in neurosurgery. Vol. 38
Springer, 2012
 eBooks
Encyclopedia of library and information science; Vol. 38
edited by Allen Kent
Marcel Dekker, 1985
 Buku Referensi
Great books of the western world : 38 Montesquieu, Rousseau
Robert Maynard Hutchins, editor in chief
Encyclopaedia Britannica, Inc., 1952
 Buku Referensi