Bucci, Luke R (2000). «Selected herbals and human exercise performance». The American Journal of Clinical Nutrition. 2. 72: 624S–636S. ISSN0002-9165. doi:10.1093/ajcn/72.2.624S.
NCCIH, «More To Consider». sfn error: no target: CITEREFNCCIH (help)«Ayurvedic Medicine: In Depth NCCIH». National Center for Complementary and Integrative Health. Besøkt 20. november 2021.
Bucci, Luke R (2000). «Selected herbals and human exercise performance». The American Journal of Clinical Nutrition. 2. 72: 624S–636S. ISSN0002-9165. doi:10.1093/ajcn/72.2.624S.