Erdősi, S. „Pontatlan Adatok - Joseph W. Duncan & A. C. Gross: Statistics for the 21st Century, Irwin, 1995”. Marketing &Amp; Menedzsment, köt. 30, sz. 3, 2019. december, o. 59-60, https://journals.lib.pte.hu/index.php/mm/article/view/2394.