Sigid Edy Purwanto
https://www.scopus.com/authid/detail.uri?authorId=56073614300
(Scopus Author ID 56073614300) Prodi Pendidikan Matematika, Universitas Muhammadiyah Prof. Hamka
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Sigid Edy Purwanto
https://www.scopus.com/authid/detail.uri?authorId=56073614300
(Scopus Author ID 56073614300) Prodi Pendidikan Matematika, Universitas Muhammadiyah Prof. Hamka