Tanyakorn Muangnapoh และ Tawatchai Charinpanitkul. (2007) Synthesis of gold nanoparticles using pH control and ultrasonication. Chulalongkorn University:ม.ป.ท.Tanyakorn Muangnapoh และ Tawatchai Charinpanitkul. 2007. Synthesis of gold nanoparticles using pH control and ultrasonication. ม.ป.ท.:Chulalongkorn University;Tanyakorn Muangnapoh และ Tawatchai Charinpanitkul. Synthesis of gold nanoparticles using pH control and ultrasonication. ม.ป.ท.:Chulalongkorn University, 2007. Print.