-----------
Referensi:
Dahl, M. (2015, July 24). Why Lonely People Stay Lonely. Retrieved from Huffington Post: http://www.huffingtonpost.com/science-of-us/why-lonely-people-stay-lo_b_7849692.html
Gammon, K. (2012, March 2). Why Loneliness Can Be Deadly. Retrieved from Live Science: http://www.livescience.com/18800-loneliness-health-problems.html
Henig, R. M. (2014, August 11). The Science of Loneliness. Retrieved from Psychology Today: https://www.psychologytoday.com/blog/cusp/201408/the-science-loneliness
Shulevitz, J. (2013, May 23). The Lethality of Loneliness. Retrieved from New Republic: http://www.newrepublic.com/article/113176/science-loneliness-how-isolation-can-kill-you
Valadez, L. (2014, August 14). How To Survive The Unexpected Loneliness with Psyhology. Retrieved from Learning-Mind: http://www.learning-mind.com/how-to-survive-the-unexpected-loneliness-with-psychology/
