Democratic Parenting and Sibling Rivalry Among Adolescents at SMP Negeri 4 Kendari Nur Maghfira Dafid, S.Psi., M.Si. Dr. Nani Restati Siregar, S.Psi., M.Psi., Psikolog Eva Herik Jurnal Sublimapsi Vol. 7 No. 3 2026 DOI 10.36709/sublimapsi.v7i3.156