E. Sulistyawati, H. Anggorowati, N. Rochmah K.P, and N. Ariardini, “Isotherm and Adsorption Thermodynamics Cross-Linked Chitosan Microcapsules of Kalium Pershulphate to Methyl Orange Dye”, Eksergi, vol. 19, no. 2, pp. 51–57, Jul. 2022.