Terelak, J. F., and M. Jasiura. “Emotional Intelligence and Coping Styles Stress at of Single Mothers”. Studia Psychologica: Theoria Et Praxis, vol. 12, no. 1, Aug. 2012, pp. 67-82, https://czasopisma.uksw.edu.pl/index.php/sp/article/view/2766.