1. Nolan, J. M.; Turner, N. J., Ethnobotany: The study of people-plant relationships, Ethnobiology, 2011, 9, 135-141.
2. Mincheva, I., Ethnobotany and Ethnopharmacology - ethnobotanical analysis, sustainable use of medicinal plants in the Rhodopes and testing of ethnopharmacological data on the creeper Potentilla reptans L. (Rosaceae), Medical University of Sofia (Bulgaria) ProQuest Dissertations Publishing, 2019.
3. [3]. Ivancheva, S.; Stantcheva, B., Ethnobotanical inventory of medicinal plants in Bulgaria, Journal of Ethnopharmacology, 2000, 69(2), 165-172.
4. Ploetz, K. L., An ethnobotanical study of wild herb use in Bulgaria. Master's thesis, Michigan Technolocical University, 2000.
5. Ploetz, K.; Orr, B., Wild herb use in Bulgaria, Economic Botany, 2004, 58(2), 231-241.