Malinowska, P., and A. Zielińska-Chmielewska. “APPLIED PRICING STRATEGIES OF TOOTHPASTES’ PRODUCERS ON POLISH COSMETICS MARKET”. Acta Scientiarum Polonorum. Oeconomia, Vol. 10, no. 3, Sept. 2011, pp. 97-107, https://js.wne.sggw.pl/index.php/aspe/article/view/4025.