Chattarin Bunkerd. 2002. Self-reliance group of chemical-free cultivators at Tambon Huay Phra, Amphoe Dontoom, Nakhonpathom province. Field of Study Rural Development Studies, Mahidol University;
Chattarin Bunkerd. (2002) Self-reliance group of chemical-free cultivators at Tambon Huay Phra, Amphoe Dontoom, Nakhonpathom province . Mahidol University/Bangkok.
Chattarin Bunkerd. Self-reliance group of chemical-free cultivators at Tambon Huay Phra, Amphoe Dontoom, Nakhonpathom province. . Bangkok:Mahidol University, 2002.
Chattarin Bunkerd. (2002) Self-reliance group of chemical-free cultivators at Tambon Huay Phra, Amphoe Dontoom, Nakhonpathom province . Mahidol University/Bangkok.