References:
- http://www.serbia.travel/
- https://www.cia.gov/library/publications/the-world-factbook/geos/ri.html
- https://frmilovan.wordpress.com/2013/02/13/fun-facts-about-serbs/
- http://www.10-facts-about.com/Serbia/id/896
- http://www.npr.org/sections/thetwo-way/2015/11/12/455804006/serbia-to-give-5-million-to-a-town-where-a-massacre-took-place
- https://en.wikipedia.org/wiki/Serbia
- http://www.serbiaincoming.com/magazine/10-interesting-facts-about-serbia/
- http://meettheslavs.com/territory-of-modern-serbia-home-to-18-roman-emperors/
- https://ec.europa.eu/programmes/creative-europe/20160902-conservation-study-village-gostusa-serbia_en)
- https://en.wikipedia.org/wiki/Vratna_Gates
- http://www.serbia.com/22-interesting-facts-serbia-probably-never-heard/
- http://thevampires.website/first-vampire-petar-blagojevic-also-known-peter-plogojewitz/
- http://www.telegraf.rs/english/1520763-do-you-know-why-the-white-angel-disappeared-and-four-more-amazing-things-about-the-serbian-holy
- http://www.serbia.com/visit-serbia/natural-beauties/unique-nature/when-river-tisza-blooms/
- https://www.nasa.gov/exploration/whyweexplore/Why_We_29.html
- http://www.evs-translations.com/blog/serbia/
- http://www.ranker.com/list/famous-scientists-from-serbia/reference
- http://www.evs-translations.com/blog/serbia/