Onsarn A, Mattaraj S, Dechapanya W, Ratanapongleka K, Sanongraj S, Rattanaweerapan T. Effect of pH by Manganese Salts and Natural Organic Matter on Nanofiltration Membrane Fouling . Eng. & Technol. Horiz. [internet]. 2023 Dec. 19 [cited 2026 Aug. 27];40(4):400411. available from: https://ph01.tci-thaijo.org/index.php/lej/article/view/253813