Ulfah, Widati Amalin, STKIP Muhammadiyah Bangka Belitung, Indonesia

• Berumpun: International Journal of Social, Politics, and Humanities Vol 2 No 1 (2019): Berumpun: International Journal of Social, Politics and Humanities - Research Articles
  Improving Achievement Motivation for Mentally Disabled Students at School for Exceptional Children (SLB) YPAC Pangkalpinang
  Abstract  PDF