Nurkholisha, A., and R. E. E. . Purnamasari. “Lithium Recovery From Lapindo Sludge Water (Brine) By Adsorption Method Using Manganese Dioxide (Mno2) Adsorbent”. Eduvest - Journal of Universal Studies, vol. 5, no. 2, Feb. 2025, pp. 1892-01, doi:10.59188/eduvest.v5i2.3774.