Phothilangka, Phimphaka. 2020. “OOD ASTE OTENTIAL ND EEDING ATES N IOGAS RODUCTION N WO-TAGE IGESTION ITH FFLUENT ECIRCULATION”. ife ciences and nvironment ournal 21 (1), 180-93. https://ph01.tci-thaijo.org/index.php/psru/article/view/240350.