References

Links:

  • https://youtu.be/OFRrD01gC3Y?feature=shared
  • https://youtu.be/wjyM7QVtg2w

Individual theory research links:

  • https://www.facebook.com/share/r/1A1cdNbDLy/
  • https://www.youtube.com/watch?v=mt-Pa5s5zZI