Lora, A., and Y. Hasan. “MENINGKATKAN KEMAMPUAN MENGENAL RAMBU-RAMBU LALU LINTAS MELALUI METODE ROLE PLAYING PADA ANAK TUNAGRAHITA RINGAN KELAS III DI SLBN 1 KUBUNG”. Ranah Research : Journal of Multidisciplinary Research and Development, Vol. 1, no. 4, Aug. 2019, pp. 998-1004, https://jurnal.ranahresearch.com/index.php/R2J/article/view/162.