Vojvodic N. MEASURING THE EFFECTIVENESS OF MARKETING INVESTMENTS USING THE METHOD OF SNEDECOR’S F DISTRIBUTION. Jour Proc Manag New Tech [Internet]. 2016 Oct. 25 [cited 2026 Sep. 20];4(4). Available from: https://test.aseestant.ceon.rs/index.php/jouproman/article/view/11746