ŁASZKIEWICZ, E. SAMPLE SIZE AND STRUCTURE FOR MULTILEVEL MODELLING: MONTE CARLO INVESTIGATION FOR THE BALANCED DESIGN. Metody Ilościowe w Badaniach Ekonomicznych, [S. l.], v. 14, n. 2, p. 19–28, 2013. Disponível em: https://qme.sggw.edu.pl/article/view/3604. Acesso em: 21 lis. 2024.