“PENGARUH PENDEKATAN APTITUDE TREATMENT INTERACTION (ATI) TERHADAP PEMAHAMAN KONSEP MATEMATIKA SISWA KELAS VIII SMP NEGERI 25 PEKANBARU”. Primary: Jurnal Pendidikan Guru Sekolah Dasar 4, no. 1 (April 10, 2015): 79–86. Accessed February 11, 2026. https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/1208.