Kavya S Krishna Efficacy of Asvagandha- Withania somnifera(Linn.) Dunal root extract in post covid fatigue syndrome: A single -blinded randomized placebo-controlled study/ - Kottakkal: Dept.of Dravyaguna vijnana V P S V Ayurveda college, 2023. - PDF-511,DRA-51 Dewey Class. No.: 615 / KAV/EF