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  1. ↑ Миковъ, Василъ (1943). "Произходъ и значение на имената на нашитѣ градове, села, рѣки, планини и мѣста" [Origin and meaning of the names of our towns, villages, rivers, mountains and places.]. promacedonia.org (ภาษาบัลแกเรีย). Sofia: Печатница Хр. Г. Дановъ. p. 105.
  2. ↑ "Dozens killed in Bulgaria bus crash, including children". BBC News. 23 November 2021. สืบค้นเมื่อ 23 November 2021.