DILEK AZAZ, AYSE, et al. “Composition and the in Vitro Antimicrobial Activities of the Essential Oils of Achillea Wilhelmsii C. Koch. and Achillea Lycaonica Boiss &Amp; Heldr”. Asian Journal of Chemistry, vol. 20, no. 2, Mar. 2010, pp. 1238-44, https://asianpubs.org/index.php/ajchem/article/view/12534.