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About The Authors

Nurfazila Nurfazila
Fakultas Sains Dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

Heri Mulyono
Fakultas Sains Dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

Regina Ade Darman
Fakultas Sains Dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

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