Yuliyanti, Sri, Ahmad Fadhli, and Fita Yunitasari. “Surprise Marketing Sebagai Strategi Membangun Customer Engagement: Studi Konseptual Pada Implementasi POP MART”. RIGGS: Journal of Artificial Intelligence and Digital Business 5, no. 2 (July 28, 2026): 20287–20296. Accessed November 13, 2026. https://journal.ilmudata.co.id/index.php/RIGGS/article/view/12057.