https://www.nbcnews.com/news/world/life-north-korean-labor-camp-no-thinking-just-fear-n32076
https://www.independent.co.uk/news/world/asia/north-korea-forced-labour-survivor-camp-15-hermit-kingdom-kim-jong-un-a7971926.html
https://www.foxnews.com/world/defectors-from-north-korea-describe-concentration-camp-daily-life
https://www.businessinsider.com/they-are-intentionally-starved-and-worked-to-death-the-horrific-conditions-in-north-korean-labor-camps-2016-3
https://www.rfa.org/english/bookshelf/youngjung.pdf