Treballs UD123

https://www.youtube.com/watch?v=CoTFehrLDBk&feature=youtu.be

https://www.youtube.com/edit?o=U&video_id=nlrVVF9G2G0

https://www.youtube.com/watch?v=JP-RMVoFCjo&feature=youtu.be

https://www.youtube.com/watch?v=Ut2c2S7g8F0&feature=youtu.be

https://www.youtube.com/watch?v=CnKKLiKlERU

http://youtu.be/qK8eyLuzH38.

http://youtu.be/VTxUFCdvyFY.

https://www.youtube.com/watch?v=WquXczail00&index=3&list=UUWq94Y42VJ5TscrnZvQf_Hw

https://www.youtube.com/watch?v=fz32-olrvbE&feature=youtu.be

https://www.youtube.com/watch?v=hN5ZCGX66wk&feature=em-upload_owner

COMENTARIS DEL TREBALL