Browsing by Author Olejnik, Krzysztof
Showing results 1 to 1 of 1
| Issue Date | Title | Author(s) |
|---|---|---|
| 2022 | Intensity of commercial communication in Poland in the field of dietary supplements | Hys, Katarzyna; Matuszek, Dominika Barbara; Olejnik, Krzysztof; Bierczyński, Karol |