Kowerski, Mieczysław. “The Economic Sentiment Index As a Tool of Estimation of the Growth Rate of GDP in Regions. An Example of the Lubelskie Voivodship”. Regional Barometer. Analyses & Prognoses 11, no. 1 (May 9, 2013): 57–63. Accessed November 8, 2024. https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1138.