Warsani Purnamasari, s S, Lubis FRA. The Influence Of Education Level And Religious Knowledge On Social Welfare In The Community In The Ecotourism Area Of Tangkahan, Langkat Regency. ISBN [Internet]. 2025Feb.20 [cited 2025Feb.24];1(1). Available from: https://jurnal.unprimdn.ac.id/index.php/ISBN/article/view/6468