[1]
Cetlová, H., Marciník, R. and Velinov, E. 2020. Research into online marketing activities and tools for measuring their efficiency by entrepreneurs in the czech republic. Socio-Economic and Humanities Studies. 11, 1 (Nov. 2020), 41–54. DOI:https://doi.org/10.61357/sehs.v11i1.47.