Yancheva, K. Bulgarian Folklore as the Competitive Advantage of Tourism Product. Махачкала: Изд. дом Наука плюс, 2013 с. 25 - 27, 978-5-906334-03-9.
Yancheva, K. Bulgarian Folklore as the Competitive Advantage of Tourism Product. Махачкала: Изд. дом Наука плюс, 2013 с. 25 - 27, 978-5-906334-03-9.
Yancheva, K. (2013) Bulgarian Folklore as the Competitive Advantage of Tourism Product, Махачкала: Изд. дом Наука плюс с. 25 - 27, 978-5-906334-03-9.
Yancheva, K. (2013). Bulgarian Folklore as the Competitive Advantage of Tourism Product. Махачкала: Изд. дом Наука плюс, с. 25 - 27.
Yancheva K. Bulgarian Folklore as the Competitive Advantage of Tourism Product. Махачкала: Изд. дом Наука плюс; 2013. p. с. 25 - 27. ISBN: 978-5-906334-03-9.
