Photriphet, Naphatsorn, Chongrak Polprasert, and Warunsak Liamlaem. 2015. “Treatment of Wastewaters from Offset Printing Industry by Fenton’s Reaction”. Science & Technology Asia 18 (4):17-25. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41132.