PUSPITASARI, D.; GUNARHADI, G.; ANWAR, M. PENGARUH PENGGUNAAN MODEL PEMBELAJARAN SELF-DIRECTED LEARNING TERHADAP PRESTASI BELAJAR IPA PADA ANAK TUNAGRAHITA KELAS IV DI SLB PANCA BAKTI SURAKARTA. SPEED Journal : Journal of Special Education, [S. l.], v. 2, n. 1, p. 10–23, 2018. Disponível em: https://jurnal.unipar.ac.id/index.php/speed/article/view/100. Acesso em: 8 sep. 2025.