Chŏng, O. (2011). Han'guk ŭi lidŏsip sŏnbi rŭl mal hada: Chŏng Ok-cha yŏksa esei (Ch'op'an.). Munidang.
Chicago Style (17th ed.) CitationChŏng, Ok-cha. Han'guk ŭi Lidŏsip Sŏnbi Rŭl Mal Hada: Chŏng Ok-cha Yŏksa Esei. Ch'op'an. Sŏul: Munidang, 2011.
MLA (9th ed.) CitationChŏng, Ok-cha. Han'guk ŭi Lidŏsip Sŏnbi Rŭl Mal Hada: Chŏng Ok-cha Yŏksa Esei. Ch'op'an. Munidang, 2011.
Warning: These citations may not always be 100% accurate.