Yŏng-sik Chang

• 2011 OECD tŭng kukche kigu t'onggye saengsan mit kwalli
• Chijachʻe ŭi pogŏn tʻonggye saengsan hwalsŏnghwa pangan
• Han'guk ŭi pogŏn pokchi tonghyang 2010
• Han'guk ŭi pogŏn pokchi tonghyang 2011
• Hanʼguk ŭi ingu chŏngchʻaek tonghyang kwa chŏnmang
• Hanʼguk ŭi inʼgu kyumo wa kujo
• Hanʼguk ŭi inʼgu kyumo wa kujo
• Hanʼguk ŭi sahoe chipʻyo chʻegye kaepʻyŏn yŏnʼgu
• Miryang arirang
• Pukhan ŭi enŏji kyŏngje
• Toward integrating the electricity production of Hydro Quebec and the New York Power Pool
• 韓國의保健福祉指標