1.
Identification Of Selected Polyphenols In The Leaves Of Purple Coneflower (Echinacea Purpurea). Divers. res. j. analysis trends [Internet]. 2025 Apr. 15 [cited 2026 Jan. 21];3(05):1-6. Available from: https://academiaone.org/index.php/2/article/view/1178