Chaijitwanitku, Wichai, Payak Prarinyawongskul, Kangwan Wongratsameedeun, It-thipol Soongkaeng, Witoon Triratwong, Witoon Prasongwatana, and Pote Sriboonlue. 2013. “Infrared Spectroscopy Analysis of Urinary Tract Stones Collected from 4 Community Hospitals in Udorn Thani Province”. Srinagarind Medical Journal 6 (2):85-92. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13564.