Kyŏngje wigi ihu chaebŏl chŏngchʻaek ŭi sŏngkwa e taehan silchŭng punsŏk - Cho, Song-uk; 조 성욱 (Chŏngch'aek yŏn'gu sirijŭ (Han'guk Kaebal Yŏn'guwŏn) ;, 2001)