Sam-chʻŏl Chŏng

• Chʻungbuk kwanʼgwang sanŏp ŭi chiyok kyongje e taehan kiyŏdo punsŏk
• Chʻungbuk kwanʼgwang sanŏp ŭi chiyok kyongje e taehan kiyŏdo punsŏk
• 충북관광론