Warunee Thianthaworn และ Rattanawat Chaiyarat. (2010) Yield and management of Coffea Arabica L. in agroforestry system in Dol Tung Development Project under Royal Initiative, Chiangrai province, Thailand. Mahidol University:ม.ป.ท.Warunee Thianthaworn และ Rattanawat Chaiyarat. 2010. Yield and management of Coffea Arabica L. in agroforestry system in Dol Tung Development Project under Royal Initiative, Chiangrai province, Thailand. ม.ป.ท.:Mahidol University;Warunee Thianthaworn และ Rattanawat Chaiyarat. Yield and management of Coffea Arabica L. in agroforestry system in Dol Tung Development Project under Royal Initiative, Chiangrai province, Thailand. ม.ป.ท.:Mahidol University, 2010. Print.