The Effect Of Price, Product Variation, And Promotion On Purchase Decisions At Niky Cokelat Kediri . Proceeding Kilisuci International Conference on Economic & Business, [S. l.], v. 3, 2025. DOI: 10.29407/fgqn4x82. Disponível em: https://proceeding.unpkediri.ac.id/index.php/kilisuci/article/view/8250. Acesso em: 12 oct. 2026.