Uthaitip Injang และ Orawon Chailapakul. (2009) Method development for the determination of trace heavy metals by sequential injection-anodic stripping voltammetry using bismuth-coated screen printed carbon nanotube electrode. Chulalongkorn University:ม.ป.ท.Uthaitip Injang และ Orawon Chailapakul. 2009. Method development for the determination of trace heavy metals by sequential injection-anodic stripping voltammetry using bismuth-coated screen printed carbon nanotube electrode. ม.ป.ท.:Chulalongkorn University;Uthaitip Injang และ Orawon Chailapakul. Method development for the determination of trace heavy metals by sequential injection-anodic stripping voltammetry using bismuth-coated screen printed carbon nanotube electrode. ม.ป.ท.:Chulalongkorn University, 2009. Print.