Somchai Keawwangchai และ Thawatchai Tuntulani. (2006) Synthesis of electrochemical and optical anion sensors containing organic dyes. Chulalongkorn University:ม.ป.ท.Somchai Keawwangchai และ Thawatchai Tuntulani. 2006. Synthesis of electrochemical and optical anion sensors containing organic dyes. ม.ป.ท.:Chulalongkorn University;Somchai Keawwangchai และ Thawatchai Tuntulani. Synthesis of electrochemical and optical anion sensors containing organic dyes. ม.ป.ท.:Chulalongkorn University, 2006. Print.