IMPROVING SHOPPING MALL REVENUE BY REAL TIME CUSTOMIZED DIGITAL COUPON ISSUANCE. International Journal of Engineering Research and Science & Technology, [S. l.], v. 21, n. 4, p. 239–244, 2025. DOI: 10.62643/. Disponível em: https://ijerst.org/index.php/ijerst/article/view/1518. Acesso em: 27 jul. 2026.