Chaiyong Rujjanawate. 1997. Pharmacological actions and toxicity of Gelsemium elegans benth. Chiang Mai:Chiang Mai University;
Chaiyong Rujjanawate. (1997) Pharmacological actions and toxicity of Gelsemium elegans benth (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.
Chaiyong Rujjanawate. Pharmacological actions and toxicity of Gelsemium elegans benth. Chiang Mai:Chiang Mai University, 1997.
Chaiyong Rujjanawate. (1997) Pharmacological actions and toxicity of Gelsemium elegans benth (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.