P. Khamdahsag, T. Jarichanon, J. Phanthasri, S. Suwannatrai, B. Pangkumhang, and V. Tanboonchuy*, “Adsorption of Dye Over Lignin Obtained from Wastewater Separation”, Curr. Appl. Sci. Technol., vol. 21, no. 1, pp. 165–175, Aug. 2020.