Navaitis, Gediminas, Gintaras Labutis, and Brigita Kairienė. “THE MARITAL STATUS AND THE HAPPINESS”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 1 (May 26, 2016): 458–468. Accessed April 22, 2025. https://journals.ru.lv/index.php/SIE/article/view/1513.