Alfina Ifadah, Nafiah, Aris Budianto. Implementation of Flipbook Based Teaching Materials Pancasila Education Subjects to Improve the Mutual Cooperation Character of Class IV Students at SDN Karah 1 Surabaya. Ehdj [Internet]. 2025Apr.30 [cited 2025Nov.16];10(1):57-69. Available from: https://journal2.unusa.ac.id/index.php/EHDJ/article/view/6214