Hiroki Ozono, Motoki Watabe, Sakiko Yoshikawa, Satoshi Nakashima, Nicholas O. Rule, Nalini Ambady, Reginald B. Adams, Jr.,
What’s in a Smile? Cultural Differences in the Effects of Smiling on Judgments of Trustworthiness Letters on Evolutionary Behavioral Science. ,vol. 1, pp. 15- 18 ,(2010) ,
10.5178/LEBS.2010.4