Indah Permata Sari. Improving Literature and Numeration In Elementary School Learning Activities And Increasing Community Income That Comes From Oil Palm In Village Mata PAO. JOCSFIS [Internet]. 2023 Jan. 7 [cited 2025 Jul. 2];1(1):1-5. Available from: https://journal.berpusi.co.id/index.php/jocsfis/article/view/22