Dr. Agus Wijayanto, (SCOPUS ID: 55849021900) (SINTA ID = 6011739), Faculty of Teacher Training and Education, Universitas Muhammadiyah Surakarta

Prof. Dr. Harun Joko Prayitno, (SCOPUS ID: 57208802031), (SINTA ID: 5985149) Indonesian Language and Literature Education, Universitas Muhammadiyah Surakarta, Indonesia

Nurwanto Nurwanto, (ID SCOPUS: 57205295204) (SINTA ID = 5999962) Department of Islamic Education, Faculty of Islamic Studies, Universitas Muhammadiyah Yogyakarta

Anik Ghufron, (ID SCOPUS= 57204199426)(ID SINTA= 5989006), Faculty of Teacher Training and Education, Universitas Negeri Yogyakarta

Yayan Nurbayan, (ID SCOPUS: 57192940388) (ID SINTA: 258249), Faculty of Teacher Training and Education, Universitas Pendidikan Indonesia

Asep Supena, (SINTA ID = 6043689), Elementary Education, Faculty of Education, Universitas Negeri Jakarta

Retno Winarni, (ID Scopus = 57199231674) (ID Sinta = 6189395), Faculty of Teacher Training and Education, Universitas Sebelas Maret

St. Y. Slamet, (SCOPUS ID = 56436609600), Faculty of Teacher Training and Education, Universitas Sebelas Maret

Sutama Sutama, (SINTA ID = 5985034) Mathematic Education, Universitas Muhammadiyah Surakarta