Nesin'den lise 1'lere matematik kitabı https://t.co/G856oC9G5W pic.twitter.com/WZdRgpzo16
— isthaber (@isthaber) January 11, 2016
Nesin'den lise 1'lere matematik kitabı https://t.co/G856oC9G5W pic.twitter.com/WZdRgpzo16
— isthaber (@isthaber) January 11, 2016