Preuss, H. G.; Bagchi, D.; Bagchi, M.; Rao, C. V. S.; Dey, D. K.; Satyanarayana, S. (May 2004). "Effects of a natural extract of (–)-hydroxycitric acid (HCA-SX) and a combination of HCA-SX plus niacin-bound chromium and Gymnema sylvestre extract on weight loss". Diabetes, Obesity & Metabolism6 (3): 171–180. doi:10.1111/j.1462-8902.2004.00328.x. பப்மெட்:15056124.
Preuss, H. G.; Bagchi, D.; Bagchi, M.; Rao, C. V. S.; Dey, D. K.; Satyanarayana, S. (May 2004). "Effects of a natural extract of (–)-hydroxycitric acid (HCA-SX) and a combination of HCA-SX plus niacin-bound chromium and Gymnema sylvestre extract on weight loss". Diabetes, Obesity & Metabolism6 (3): 171–180. doi:10.1111/j.1462-8902.2004.00328.x. பப்மெட்:15056124.