Nenov N., Atanasova T., Gochev V., Merdzhanov P., Girova T., Djurkov T., and Stoyanova A. “NEW PRODUCT FROM BULGARIAN ROSE”. World Science, Vol. 1, no. 3(7), Mar. 2016, pp. 17-22, https://rsglobal.pl/index.php/ws/article/view/980.