PENERAPAN CROSS SELLING PADA SISTEM CUSTOMER RELATIONSHIP MANAGEMENT PENJUALAN BUKU. Komputa : Jurnal Ilmiah Komputer dan Informatika, [S. l.], v. 7, n. 2, p. 69–76, 2018. DOI: 10.34010/komputa.v7i2.3039. Disponível em: https://ojs.unikom.ac.id/index.php/komputa/article/view/3039. Acesso em: 21 apr. 2025.