NONCHEVA, Veska; VALKOV, Venelin. IMPUTATION OF MISSING CATEGORICAL VALUES IN SURVEY RESEARCH DATA. Matematichki Bilten, [S. l.], v. 41, n. 1, 2017. DOI: 10.37560/matbil11700023n. Disponível em: https://bilten.smm.org.mk/index.php/bilten/article/view/1841. Acesso em: 13 jun. 2026.