Ayut Kongpun และ Benjavan Rerkasem. (2010) Alleviating acid soil stress in legumes with arbuscular mycorrhizal fungi /. Chiang Mai University,:ม.ป.ท.Ayut Kongpun และ Benjavan Rerkasem. 2010. Alleviating acid soil stress in legumes with arbuscular mycorrhizal fungi /. ม.ป.ท.:Chiang Mai University,;Ayut Kongpun และ Benjavan Rerkasem. Alleviating acid soil stress in legumes with arbuscular mycorrhizal fungi /. ม.ป.ท.:Chiang Mai University, 2010. Print.