Mangido Nainggolan. Integrating toba batak culture in elementary school learning: an effort to strengthen the local identity of the nation’s children. JPFKIP [Internet]. 2025 Oct. 26 [cited 2026 Sep. 20];14(5):812-25. Available from: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/194