Medical News Today
https://www.medicalnewstoday.com/articles/284378#interpretations
Diakses 22 Juli 2020Scientific America
https://www.scientificamerican.com/article/what-is-dreaming-and-what-does-it-tell-us-about-memory-excerpt/
Diakses 22 Juli 2020Time
https://time.com/4970767/rem-sleep-dreams-health/
Diakses 22 Juli 2020