Links
[1] https://www.tourism.government.bg/sites/tourism.government.bg/files/uploads/rtd/guides_2019/okonchatelna_otzenka-izdarjal_may.2019.pdf
[2] https://www.tourism.government.bg/sites/tourism.government.bg/files/uploads/rtd/guides_2019/okonchatelna_otzenka-neizdarjal_may.2019.pdf
[3] https://www.tourism.government.bg/sites/tourism.government.bg/files/uploads/rtd/guides_2019/spisak-neiavili_se_kandidati_may.2019.pdf