Rovčanin, Branislav Radojica, Tatjana, Danijela Steševi, Dušan Keki, and Marko Risti. “Antibacterial Effect of Herniaria Hirsuta, Prunus Avium, Rubia Tinctorum and Sempervivum Tectorum Plant Extracts on Multiple Antibiotic Resistant Escherichia Coli ”. Bioscience Journal 31, no. 6 (November 17, 2015). Accessed October 23, 2021. http://www.seer.ufu.br/index.php/biosciencejournal/article/view/29091.