Quantification of total polyphenols and flavonoids, antioxidant activity, and Sinensetin and Imperatorin contents of Imperata cylindrica root ethanol extract, Indriyanti, Raden Anita, Ariyanto Eko Fuji, Usman Hermin Aminah, Effendy Ristaniah Rose, and Dhianawaty Diah , Pharmacognosy Journal, August 2022, Volume 14, Issue 4, p.327-337, (2022)