Nasrul Hudayah และ Pawinee Chaiprasert. (2013) Enhancement of the formation of multilayered anaerobic granules in UASB reactors. King Mongkut’s University and Technology Thonburi:ม.ป.ท.Nasrul Hudayah และ Pawinee Chaiprasert. 2013. Enhancement of the formation of multilayered anaerobic granules in UASB reactors. ม.ป.ท.:King Mongkut’s University and Technology Thonburi;Nasrul Hudayah และ Pawinee Chaiprasert. Enhancement of the formation of multilayered anaerobic granules in UASB reactors. ม.ป.ท.:King Mongkut’s University and Technology Thonburi, 2013. Print.