ASYIFNI. Meningkatkan Prestasi Belajar Matematika Materi Diagram Lingkaran Melalui Metode Diskusi Kelompok Tim Tutor Sebaya Pada Sd Negeri Kabupaten Aceh Selatan. Jurnal Kinerja Kependidikan (JKK): Facilities of Educator Career and Educational Scientific Information, [S. l.], v. 4, n. 3, p. 516–527, 2022. DOI: 10.32672/jkk.v4i3.153. Disponível em: https://www.journalserambi.org/index.php/jkk/article/view/153. Acesso em: 20 jun. 2025.