Tham khảo Khiêm_tốn

  1. ↑ C. R. Snyder; Shane J. Lopez (2001). Handbook of Positive Psychology. Oxford University Press. tr. 413. ISBN 978-0-19-803094-2. 
  2. ↑ Humility, The Catholic encyclopedia, Herbermann et al. (Editors), Vol 7, 1910, pp 543-544
  3. ↑ Humility, The Protestant theological and ecclesiastical encyclopedia, Herzog et al (Editors), Vol 2, 1860, pp 598-599
  4. ↑ Peterson, Christopher (2004). Character strengths and virtues a handbook and classification. Washington, DC New York: American Psychological Association Oxford University Press. ISBN 978-0-19-516701-6. 
  5. ↑ Everett L. Worthington Jr. (2007). Handbook of Forgiveness. Routledge. tr. 157. ISBN 978-1-135-41095-7. 
  6. ↑ Schwarzer, Ralf (2012). Personality, human development, and culture: international perspectives on psychological science. Hove: Psychology. tr. 127–129. ISBN 978-0-415-65080-9. 
  7. ↑ Jeff Greenberg; Sander L. Koole; Tom Pyszczynski (2013). Handbook of Experimental Existential Psychology. Guilford Publications. tr. 162. ISBN 978-1-4625-1479-3.