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andong.go.kr
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안동근현대사(PDF) (in Korean). Andong National: Modern and Contemporary history. 15 December 2010. p. 228. Archived from the original(PDF) on 10 December 2014. Retrieved 9 October 2022.
"북한의 종교별 신도 수" [North Korea's Number of Believers by Religion] (in Korean). 통계로 본 불교. 20 April 2001. Archived from the original on 7 April 2014. Retrieved 8 October 2022.