1. Department of Special Education, Faculty of Education, Universitas Negeri Jakarta, Jakarta, Indonesia
2. Department of Primary Teacher Education, Faculty of Education, Universitas Negeri Jakarta, Jakarta, Indonesia
3. Department of Basic Education, School of Postgraduate Studies, Universitas Negeri Jakarta, Jakarta, Indonesia
4. Department of English Education, Faculty of Tarbiyah and Teacher Training, Syarif Hidayatullah State Islamic University Jakarta, Jakarta, Indonesia