ไกรวุฒินันท์ ป. . and คําใจดี พ. . (2017) “The Efficiency of filter media used in anaerobic filter in wastewater treatment”., KKU Science Journal, 45(2), pp. 399–405. available at: https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/249719 (accessed: 6 December 2025).