Bolčáková, A., Gašparíková, V., & Nagyová, Ľudmila. (2012). Efficiency of TV Advertising Spots Promoting Non-alcoholic Drink Kofola. Zeszyty Naukowe SGGW, Polityki Europejskie, Finanse I Marketing, (7(56), 5–19. https://doi.org/10.22630/PEFIM.2012.7.56.1