Bunlung Muyphuag และ Vichit Viriyaroj. (2012) The efficacy of anesthesia choice for lateral internal sphincterotomy: a comparison of local anesthesia and regional anesthesia. <i>Journal of Medicine and Health Sciences</i>, <i>19</i>(1), 29-35.Bunlung Muyphuag และ Vichit Viriyaroj. "The efficacy of anesthesia choice for lateral internal sphincterotomy: a comparison of local anesthesia and regional anesthesia". Journal of Medicine and Health Sciences 19 (2012):29-35.Bunlung Muyphuag และ Vichit Viriyaroj. The efficacy of anesthesia choice for lateral internal sphincterotomy: a comparison of local anesthesia and regional anesthesia. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 2012.