Sari, Titi Kurmina, and Fatmawati. 2019. “MENINGKATKAN KEMAMPUAN MENENTUKAN NILAI TEMPAT BILANGAN MELALUI MEDIA FLASH CARD BAGI ANAK BERKESULITAN BELAJAR”. Ranah Research : Journal of Multidisciplinary Research and Development 2 (1), 28-34. https://jurnal.ranahresearch.com/index.php/R2J/article/view/190.