60a1537d4d moufaus
https://colab.research.google.....com/drive/1sLuIDLED0
https://colab.research.google.....com/drive/18RUyKLZuN
https://colab.research.google.....com/drive/1SAyFnhiob
https://colab.research.google.....com/drive/1EJtQM60a5
https://colab.research.google.....com/drive/1X45Gtp9Mo
http://hmj.matematika.um.ac.id/?p=1451