Thanpapha Chanthapetch และ Kanjana Chansa-ngavej. (2009) DNA fingerprinting of soybean rhizobia isolated from nodules of soybeans inoculated with biofertilizer NA7 in Nam Moub subdistrict, Nan province. Chulalongkorn University:ม.ป.ท.Thanpapha Chanthapetch และ Kanjana Chansa-ngavej. 2009. DNA fingerprinting of soybean rhizobia isolated from nodules of soybeans inoculated with biofertilizer NA7 in Nam Moub subdistrict, Nan province. ม.ป.ท.:Chulalongkorn University;Thanpapha Chanthapetch และ Kanjana Chansa-ngavej. DNA fingerprinting of soybean rhizobia isolated from nodules of soybeans inoculated with biofertilizer NA7 in Nam Moub subdistrict, Nan province. ม.ป.ท.:Chulalongkorn University, 2009. Print.