Tippaporn Sophonpattanakit. (2010) Selection of bacilli capable of removing ammonia, nitrite and nitrate /. King Mongkut's University of Technology Thonburi,:ม.ป.ท.Tippaporn Sophonpattanakit. 2010. Selection of bacilli capable of removing ammonia, nitrite and nitrate /. ม.ป.ท.:King Mongkut's University of Technology Thonburi,;Tippaporn Sophonpattanakit. Selection of bacilli capable of removing ammonia, nitrite and nitrate /. ม.ป.ท.:King Mongkut's University of Technology Thonburi, 2010. Print.