By looking at the development and knowledge of children today about science, invention and innovation, especially in the field of science, it requires us to know the extent of the students' insights, knowledge and abilities in applying their knowledge of science.
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In Vivo Test on The Effectiveness of Pena Garis (Pestisida Ramah Lingkungan dari Garam, Sirih dan Serai---Environmentally Friendly Pesticides from Salt, Betel and Lemongrass)
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