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S. S. Sumarti Universitas Negeri Semarang Indonesia
Jurusan Kimia FMIPA Universitas Negeri Semarang
S. R. S. Aris Universiti Teknologi MARA Shah Alam Malaysia
R. N. Aini SMA N 1 Mijen Demak Indonesia
ISSN: 2089-4392
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