Harjati, Lily. “PENGARUH KUALITAS LAYANAN DAN PROMOSI PENJUALAN TERHADAP KEPUASAN KONSUMEN ALFAMART DI SUNTER”. Jurnal Ekonomi Perusahaan 24, no. 2 (December 20, 2018). Accessed October 25, 2025. https://jurnal.kwikkiangie.ac.id/index.php/JEP/article/view/448.