Trinh, Linh Thi, i Ha Truong Thi Khanh. „Happy People: Who Are They? A Pilot Indigenous Study on Conceptualization of Happiness in Vietnam”. Health Psychology Report, t. 7, nr 4, październik 2019, s. 296-04, https://czasopisma.bg.ug.edu.pl/index.php/HPR/article/view/7949.