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Validity of a Chemistry Laboratory Manual Based on Green Chemistry Principle for High School Students Grade X in the Odd Semester Open
This study aims to determine the validity of the Chemistry laboratory manual for high school students grade X in an odd semester which is appropriate according to experts. The chemistry laboratory manual developed applies the principle of …
Development of Green Chemistry-Based Practical Guide Book in Science High School Students Class X Even Semester Open
Practicum activities in the laboratory are important things to do in learning chemistry. However, in the fact, practicum activities in various schools still have many obstacles such as lack of time, tools and materials that are not yet ava…