Arromdee, P., A. Nawalerskasama, and N. Saewong. “Economic Analysis of Electricity Generation from Chicken Manure by Plug Flow Anaerobic Digester and CSTR Anaerobic Digester”. Humanities, Arts and Social Sciences Studies, vol. 17, no. 3, Dec. 2017, pp. 27-50, doi:10.14456/sujsha.2017.24.