Link Youtube Pertemuan 4

https://www.youtube.com/watch?v=qRKCOLbxVsY
https://www.youtube.com/watch?v=d7KkbjAtufw
https://www.youtube.com/watch?v=-l2ZdogsbgI
https://www.youtube.com/watch?v=Rn5a03Xp0Kc
https://www.youtube.com/watch?v=aGfdubLAtY8
https://www.youtube.com/watch?v=F-_lltZP5TQ
https://www.youtube.com/watch?v=v3qvU2GBmyY
https://www.youtube.com/watch?v=luEQUFWJ6oY
https://www.youtube.com/watch?v=8Tn9WrDMKRM
https://www.youtube.com/watch?v=DB3CquldjtA
https://www.youtube.com/watch?v=aHqoDAGHko4
https://www.youtube.com/watch?v=h_-a-w_lYjA
https://www.youtube.com/watch?v=5Js866QNzso
https://www.youtube.com/watch?v=_0nwphkigN8
https://www.youtube.com/watch?v=GwtjrtDhl_g
https://www.youtube.com/watch?v=TH8sqVnpxI4
https://www.youtube.com/watch?v=3BVGIl_cMi0