11. Deci EL, Ryan RM. Intrinsic motivation and self-determination in human behavior. Springer Science & Business Media. 1985;39-40. doi: 10.1007/978-1-4899-2271-7.
12. Anderson C, John OP, Keltner D, Kring AM. Who attains social status? Effects of personality and physical attractiveness in social groups. Journal of Personality and Social Psychology. 2001 Jul;81(1):116-132. doi: 10.1037/0022-3514.81.1.116.
13. Guéguen N, Lamy L. The effect of a smile on helping behavior: Smiling and good Samaritan behavior. Communication Reports. 2013 Jun;26(2):91-99. doi: 10.1080/08934215.2013.795967.
14. Snyder CR, Lopez SJ. Handbook of positive psychology. Oxford University Press; 2002. The chapter on self-confidence and attraction psychology. ISBN: 9780198030942.
15. Hazan C, Shaver P. Romantic love conceptualized as an attachment process. Journal of Personality and Social Psychology. 1987 Mar;52(3):511-524. doi: 10.1037/0022-3514.52.3.511.
16. Sprecher S, Regan PC. Passionate and companionate love in courting and young married couples. Sociological Inquiry. 1998 Jan;68(2):163-185. doi: 10.1111/j.1475-682X.1998.tb00462.x.
17. Eastwick PW, Finkel EJ. Sex differences in mate preferences revisited: Do people know what they initially desire in a romantic partner? Journal of Personality and Social Psychology. 2008 Jul;94(2):245-264. doi: 10.1037/0022-3514.94.2.245.
18. Murray SL, Holmes JG, Griffin DW. The benefits of positive illusions: Idealization and the construction of satisfaction in close relationships. Journal of Personality and Social Psychology. 1996 Jan;70(1):79-98. doi: 10.1037/0022-3514.70.1.79.
19. Aron A, Norman CC, Aron EN, McKenna C, Heyman RE. Couples’ shared participation in novel and arousing activities and experienced relationship quality. Journal of Personality and Social Psychology. 2000 Feb;78(2):273-284. doi: 10.1037/0022-3514.78.2.273.
20. Fisher HE, Aron A, Brown LL. Romantic love: A mammalian brain system for mate choice. Philosophical Transactions of the Royal Society B: Biological Sciences. 2006 Dec 29;361(1476):2173-2186. doi: 10.1098/rstb.2006.1938.