Chattrachai Intatha. (1995) Production of biogas by a two-phase anaerobic digestion from pineapple wastes. Mahidol University,:ม.ป.ท.Chattrachai Intatha. 1995. Production of biogas by a two-phase anaerobic digestion from pineapple wastes. ม.ป.ท.:Mahidol University,;Chattrachai Intatha. Production of biogas by a two-phase anaerobic digestion from pineapple wastes. ม.ป.ท.:Mahidol University, 1995. Print.