Akkor talan ez is erdekel:
http://ptgmedia.pearsoncmg.com/images/013147751X/downloads/013147751X_b…
Mastering the Art of Problem Determination
Akkor talan ez is erdekel:
http://ptgmedia.pearsoncmg.com/images/013147751X/downloads/013147751X_b…
Mastering the Art of Problem Determination