WASET
Chumkiew, S. , Srisang, W. , Jaroensutasinee, K. , Jaroensutasinee, M.. "Phenology of the Parah tree (Elateriospermumtapos) using a GAPS Model". World Academy of Science, Engineering and Technology, Open Science Index 8, International Journal of Bioengineering and Life Sciences, (2007), 1(8), 91 - 95.