Jiraporn Yongpisanphop. 2003. Accumulation and toxicity of lead and cromium in Hydrocotyle umbellata L. Field of Study Environmental Biology, Mahidol University;
Jiraporn Yongpisanphop. (2003) Accumulation and toxicity of lead and cromium in Hydrocotyle umbellata L. . Mahidol University/Bangkok.
Jiraporn Yongpisanphop. Accumulation and toxicity of lead and cromium in Hydrocotyle umbellata L. . Bangkok:Mahidol University, 2003.
Jiraporn Yongpisanphop. (2003) Accumulation and toxicity of lead and cromium in Hydrocotyle umbellata L. . Mahidol University/Bangkok.