KOŁODZIEJCZAK, W.; DRAGOSHI, G.; SHAHINI, L. PRIVATE PENSION SYSTEM IN ALBANIA. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 17, n. 4, p. 138–148, 2016. Disponível em: https://qme.sggw.edu.pl/article/view/3891. Acesso em: 28 kwi. 2024.