^ 1.01.11.2Alton, 2013. p. 79. As of 2005 the agency "Religious Intelligence UK" estimated 3,846,000 believers of Korean shamanism, 3,245,000 Chondoists, 1,082,888 Buddhists, 406,000 Christians, and the rest non-believers.
^Elizabeth Raum. North Korea. Series: Countries Around the World. Heinemann, 2012. ISBN1432961330. p. 28: «North Korea is an secular state. This means that people do not pray in public or attend places of worship. Buddhist temples exist from earlier times. They are now preserved as historic buildings, but they are not used for worship. A few Christian churches exist, but few people attend services. North Koreans do not celebrate religious holidays.»
^ 13.013.113.2Carl Young. Into the Sunset: Ch’ŏndogyo in North Korea, 1945–1950. On: Journal of Korean Religions, Volume 4, Number 2, October 2013. pp. 51-66 / 10.1353/jkr.2013.0010
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