Sombatphutthakun, Areerat, Sirithon Sinpiang, and Suwakon Janta. 2025. “The Adsorption of Methylene Blue Dye Using Pineapple Peel Waste”. PKRU SciTech Journal 9 (1):1-12. https://ph01.tci-thaijo.org/index.php/pkruscitech/article/view/257673.