https://docs.google.com/document/d/1WGV_GQ-SoDh1uSItMVK2kPiWPVEfvDae_T8CjdHptTo/edit
https://eprints.umm.ac.id/48098/3/BAB%20II.pdf
http://repository.unimus.ac.id/297/1/buku%20ajar%20psikiatri%20SKDI.pdf
