Lee Sung-Nyong
Seoul National University, 1970
Buku Teks
Global Oriental, 2008
Buku Teks
Han Young-woo
Institute of Korean Studies, 1990
Majalah, Jurnal, Buletin
New Haven : East Rock Institute
Majalah, Jurnal, Buletin
Graduate School of Public Administration (GSPA), Seoul National Universty,
Majalah, Jurnal, Buletin