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A. Lestari Science Education Study Program, FMIPA, Unnes Semarang, Indonesia
A. Widiyatmoko Science Education Study Program, FMIPA, Unnes Semarang, Indonesia
S. Alimah Science Education Study Program, FMIPA, Unnes Semarang, Indonesia
I. Juliyani
Science Teacher of 13th Junior Higschool of Magelang, Indonesia
ISSN: 2089-4392
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