Erpurini, W., Muhammad Rifky Pratama, and Irma Devita Haryono. “THE EFFECT OF PRICE AND FREE SHIPPING TAGLINE ON PURCHASE DECISION AT E-COMMERCE SHOPEE (STUDY ON ALUMNI OF SMAN 13 BANDUNG)”. Jurnal Ekonomi, vol. 11, no. 01, June 2022, pp. 466-72, https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/277.