Sandu, M. L., Călin, M. F. and Trandafir, G. . (2022) “Development and optimization of social skills in children of preschool age who come from single-parent families vs. biparental”., Technium Social Sciences Journal. Constanta, Romania, 30(1), pp. 386–408. doi: 10.47577/tssj.v30i1.6332.