Widjanarko, S. , Wijayanti, N. , Sutrisno, A.. "Laxative Potential of The Konjac Flour (Amorphophallus muelleri Blume) in Treatment of Loperamide Induced Constipation on Sprague Dawley Rats". World Academy of Science, Engineering and Technology, Open Science Index 83, International Journal of Medical and Health Sciences, (2013), 7(11), 729 - 733.