- Perm Expo Exhibition Association Office: 55a shosse Kosmonavtov, Perm, Russia, 614094, Tel./fax + 7 (342) 264-64-64, sekretar@expoperm.ru.
- gems.travel article/asia/russia/permFrom stunning cathedrals to vibrant art galleries and museums, there are plenty of places to explore in Perm. Here are the top 20 places to see in Perm, Russia.
- wikiway.com russia/perm/
- komoot.com guide/358808/attractions-in-perm-kraiWhether you love hiking or cycling, Perm Krai is a region where 20 hidden gems are waiting to be explored and visited.
- tripadvisor.in Attractions-g298516-Activities-…Have been there with many visitors - it's fun to take memorable pictures and at the same time to find out some facts about the history of the Perm Krai.
- investinperm.ru eng/permskij-kraj/The modern Perm Region is located on the territory of the Great Perm, a historical region in the basin of the Kama, Vishera, Kolva and Yazva rivers.
- tripadvisor.ca Tourism-g298516-Perm_Perm_Krai_…Perm Tourism: Tripadvisor has 20,408 reviews of Perm Hotels, Attractions, and Restaurants making it your best Perm travel resource.
- geeksforgeeks.org python-math-perm-method/Syntax: math.perm(n, k = None). Parameters: n: A non-negative integer k: A non-negative integer. If k is not specified, it defaults to None.