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MARCELINO HERMAWAN; MARCELLINO ADITYA; WINTA T. SATWIKASANTI. Perancangan APE bagi Siswa Penyandang Tunagrahita untuk Meningkatkan Kemampuan Berhitung Dasar, dengan Pendekatan Pembelajaran Manipulatif. SERENADE : Seminar on Research and Innovation of Art and Design, [S. l.], v. 3, n. 1, 2025. Disponível em: https://serenade.ukdw.ac.id/index.php/serenade/article/view/226. Acesso em: 22 feb. 2026.