1. ^{{cite book|author=Robert Willoughby|title=North Korea|url=https://books.google.com/books?id=z4XKBAAAQBAJ&pg=PA197|date=22 July 2014|publisher=Bradt Travel Guides|isbn=978-1-84162-476-1|page=197 |quote=About 35km east of Wonsan (as the road goes) is a turning to Ullim Falls, located some 8km north of the highway down a very steep and twisted road hewn off the hillside.}}
2. ^{{cite news |url=https://www.kfausa.org/echo-ullim-falls/ |publisher=Korean Friendship Association |title=Echo of the Ullim Falls |date=July 14, 2014 |archive-date=March 13, 2018 |archive-url=https://archive.today/20180313160356/https://www.kfausa.org/echo-ullim-falls/ |deadurl=yes |df= }}
3. ^{{cite news |quote=Here you will experience the charm of the country’s scenic beauty, including the Ullim Waterfall, Coastal Park, Mount Kumgang and Lagoon Sijung. |publisher=Newsweek |url=http://www.newsweek.com/north-korea-new-holiday-destination-just-dont-question-rules-281352 |first=Amelia |last=Smith |date=October 31, 2014 |title=North Korea Sets Out Stall To Become the Next Holiday Destination. Just Don't Question the Rules...}}
4. ^{{cite news |title=New Zealander climbs every mountain to chart Baekdu-Daegan range in N.K. |publisher=Korea Herald |date=January 3, 2012 |quote=“Outside of the more tourist inclined areas of (Mount Geumgang) and Ullim waterfalls [...] |first=Bob |last=York |url=http://www.koreaherald.com/view.php?ud=20120103000414}}
5. ^{{cite news |url=https://www.mountainstamp.com/Korean_Peninsula_pages/Ullim_Falls.html |title=Ullim Falls |access-date=March 13, 2018 |publisher=mountainstamps}}