Thinpru, P., P. Weerayutsil, and K. Khuanmar. “The efficiency of anaerobic baffled reactor (ABR) for wastewater prepared from chicken manure”. Engineering and Applied Science Research, vol. 43, Nov. 2016, pp. 165-6, https://ph01.tci-thaijo.org/index.php/easr/article/view/69724.