![david saputra simbolon](/citations/images/avatar_scholar_56.png)
SAHAT SARAGIH
Professor of Mathematic Education, Universitas Negeri Medan
Verified email at unimed.ac.id
Cited by 2984
Arief Aulia Rahman
SCOPUS author Id : 57205062563, Universitas Muhammadiyah Sumatera Utara
Verified email at umsu.ac.id
Cited by 1275
Dr. Feny Rita Fiantika, M.Pd
Universitas PGRI Adi Buana Surabaya
Verified email at unipasby.ac.id
Cited by 900