Pongsak (Lek) Noophan และ Supaporn Phanwilai;Pensiri Prachakittikul. (2021) Comparison of Specific Anammox Activity and Nitrous Oxide Production of Enriched Anammox Cultures in Suspended-and Attached-Growth Systems. <i>Thai Environmental Engineering Journal (TEEJ)</i>, <i>35</i>(2), 47-54.Pongsak (Lek) Noophan และ Supaporn Phanwilai;Pensiri Prachakittikul. "Comparison of Specific Anammox Activity and Nitrous Oxide Production of Enriched Anammox Cultures in Suspended-and Attached-Growth Systems". Thai Environmental Engineering Journal (TEEJ) 35 (2021):47-54.Pongsak (Lek) Noophan และ Supaporn Phanwilai;Pensiri Prachakittikul. Comparison of Specific Anammox Activity and Nitrous Oxide Production of Enriched Anammox Cultures in Suspended-and Attached-Growth Systems. Environmental Engineering Association of Thailand:ม.ป.ท. 2021.