Wahyudi, M., and M. S. Novelan. “The Influence of Shopee Free Shipping Vouchers on User Purchase Decisions: A Case Study of Rengas Pulau Subdistrict”. Jurnal Komputer Teknologi Informasi Sistem Informasi (JUKTISI), vol. 4, no. 1, May 2025, pp. 17-22, doi:10.62712/juktisi.v4i1.339.