Nattapong Thongpakde. (1989) Industrial demand for energy in Thailand. National Institute of Development Administration,:ม.ป.ท.Nattapong Thongpakde. 1989. Industrial demand for energy in Thailand. ม.ป.ท.:National Institute of Development Administration,;Nattapong Thongpakde. Industrial demand for energy in Thailand. ม.ป.ท.:National Institute of Development Administration, 1989. Print.