“Research On The Study Of The Flavonoid Composition And End-To-End Standardization Of The Raw Material And Dosage Form Of Calendula Officinalis L. Growing In Uzbekistan”. Journal of Pharmaceutical Negative Results (February 15, 2023): 2317–2327. Accessed June 9, 2026. https://mail.pnrjournal.com/index.php/home/article/view/8726.