Tong-song Cho

• 21-segi kyongyong paerodaim
• 21-segi rul wihan chollyak kyongyong
• Algi swiun kyongyong chollyak
• Han-Il sanop chongchaek yongu (Sanop Chongchaek Yonguwon yongu chongso)
• Hanguk chaebol
• Ijenun chollyak kyongyong sidae
• Kyongjaeng eso iginun kil