ZEFANYA HARIANJA, Claresia Corry; SINAGA, Samuel Juliardi; SITUMORANG, Adi Suarman. Pengaruh Penerapan Model Pembelajaran Kooperatif Aptitude Treatment Interaction (ATI) TERHADAP Peningkatan Kemampuan Pemahaman Konsep Matematis PADA Materi Pola Bilangan Kelas VIII SMPN 6 Tanjung Balai. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 5, p. 8475–8486, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/5865. Acesso em: 12 jun. 2026.