Wanta KC, Tanujaya FH, Putra FD, Susanti RF, Gemilar GP, Astuti W, et al. SYNTHESIS AND CHARACTERIZATION OF NICKEL HYDROXIDE FROM EXTRACTION SOLUTION OF SPENT CATALYST. Metalurgi [Internet]. 2020 Dec. 1 [cited 2026 Mar. 17];35(3):111-8. Available from: https://ejournal.brin.go.id/metalurgi/article/view/6868