Janthai, K., C. Warodomrungsimun, and C. Singhakant. “Decolorization of Basic and Direct Dyes by Adsorption on Chemically Modified Rice Husk”. Interdisciplinary Research Review, vol. 12, no. 1, Apr. 2017, pp. 35-42, doi:10.14456/jtir.2017.6.