Chanchit Leesatijakul และ Kraisri Umprayn. (2006) Formulation development and Evaluation of Hydrophobic Base Containing Herbal extracts for Oral Ulcers. Chulalongkorn University:ม.ป.ท.Chanchit Leesatijakul และ Kraisri Umprayn. 2006. Formulation development and Evaluation of Hydrophobic Base Containing Herbal extracts for Oral Ulcers. ม.ป.ท.:Chulalongkorn University;Chanchit Leesatijakul และ Kraisri Umprayn. Formulation development and Evaluation of Hydrophobic Base Containing Herbal extracts for Oral Ulcers. ม.ป.ท.:Chulalongkorn University, 2006. Print.