คำแนะนำของผู้เขียน
The lesson is about: Light sources and reflection of light on other surfaces. This worksheet will help the students to apply their acquired knowledge after taking the lesson.
Light sources and Reflection
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คำแนะนำของผู้เขียน
The lesson is about: Light sources and reflection of light on other surfaces. This worksheet will help the students to apply their acquired knowledge after taking the lesson.
