Eri Dia, Eva, and Nanda Rizki Ardana. “Peningkatan Perhatian Belajar Melalui Model Kooperatif Learning Pada Siswa MTs”. Journal of Education Research 3, no. 2 (July 2, 2022): 91–100. Accessed August 9, 2025. https://jer.or.id/index.php/jer/article/view/81.