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About The Authors

Asril Saputra
Fakultas Sains dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

Faiza Rini
Fakultas Sains dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

Thomson Mary
Fakultas Sains dan Teknologi, Universitas PGRI Sumatera Barat
Indonesia

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