Henriques, Inês, and Ana Margarida Barreto. “The Impact of the Purchase Channel on Unplanned Purchases”. Media & Jornalismo 19, no. 34 (June 28, 2019): 249-268. Accessed December 9, 2025. https://impactum-journals.uc.pt/mj/article/view/2183-5462_34_18.