யா. பெரெல்மான்

பொழுதுபோக்கு இயற்பியல் - பாகம் 1 - யா. பெரெல்மான் (Y. Perelman)

பொழுதுபோக்கு இயற்பியல் - பாகம் 1 ஆசிரியர்: யா. பெரெல்மான் (Y. Perelman) வகை: பிரபலமான அறிவியல் (Popular Sc...

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