1. @realDonaldTrump (Donald Trump). …Hopefully we will never have to use this power, but there will never be a time that we are not the most powerful nation in the world! Twitter (9 Aug. 2017, 05:03), twitter.com/realDonaldTrump/status/895254168570605568
2. @realDonaldTrump (Donald Trump). North Korea just stated that it is in the final stages of developing a nuclear weapon capable of reaching parts of the US It won’t happen!” Twitter (2 Jan. 2017, 3:05), twitter.com/realDonaldTrump/status/816057920223846400
3. Bedminister, N.J. Trump Says North Korea Will Be Met with ‘Fire and Fury’ If It… “Reuters”, Thomson Reuters (8 Aug. 2017). Web. 14 Sept. 2018, www.reuters.com/article/us-northkorea-missiles-usa-trump/trump-says-north-korea-will-be-met-with-fire-and-fury-if-it-threatens-u-s-idUSKBN1AO28O.
4. Courmont, B. Korea Północna. Paradoksy Polityki Kimów [North Korea. Paradoxes of the Kims Policy]. Translated by Elżbieta Brzozowska. Warsaw: Wydawnictwo Akademickie Dialog, 2011.
5. Kim, J. Kim Jong Un’s 2017 New Year’s Address. The National Committee on North Korea (1 Jan. 2017). Web. 14 Sept. 2018, https://www.ncnk.org/resources/publications/kju_2017_new_years_address.pdf/file_view.