“Peran Price Dan Promotion Dalam Memengaruhi Purchase Decision Smartphone Oppo Di Puspita Cell Pamekasan   ”. EconoPulse Nexus : Journal of Economics, Business, and Finance, vol. 1, no. 01, Dec. 2025, pp. 93-104, https://ejournal.omahtabing.com/epnj/article/view/115.