Kozhantayeva, Akmaral, and Sluken Rakhmadiyeva. “Research of Polyphenolic Compounds of Circaea Lutetiana L.”. Chemical Bulletin of Kazakh National University, no. 3 (September 8, 2020): 18-27. Accessed September 18, 2020. https://bulletin.chemistry.kz/index.php/kaznu/article/view/1151.