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The Evolution of Useful Things: How Everyday Artifacts-From Forks and Pins to Paper Clips and Zippers-Came to be as They are
Invention by Design: How Engineers Get from Thought to Thing
ترست بايلوت
راجش ب.
منذ يومين
بوجا ر.
منذ أسبوع
30 يومًالمستخدمي عضوية PRO
15 يومًابدون عضوية
يوسف أ.
منذ شهر
فرحان ق.
منذ شهرين
