Dilokruch Thangsupanich. (1991) Energy demand in post harvest activities : a case study of maize. Mahidol University,:ม.ป.ท.Dilokruch Thangsupanich. 1991. Energy demand in post harvest activities : a case study of maize. ม.ป.ท.:Mahidol University,;Dilokruch Thangsupanich. Energy demand in post harvest activities : a case study of maize. ม.ป.ท.:Mahidol University, 1991. Print.