Estiasih, T. , Harijono, H. , Sunarharum, W. , Rahmawati, A. (2012), 'Hypoglycemic Activity of Water Soluble Polysaccharides of Yam (Dioscorea hispida Dents) Prepared by Aqueous, Papain, and Tempeh Inoculum Assisted Extractions', World Academy of Science, Engineering and Technology, Open Science Index 70, International Journal of Nutrition and Food Engineering, 6(10), 878 - 884.