Sofina, Vinka Anggraeni, and Masruchin Masruchin. 2025. “Pengaruh Kualitas Produk Dan Program Diskon &Amp; Cashback Terhadap Kepuasan Pelanggan Shopee (Provinsi Jawa Timur)”. Management Studies and Entrepreneurship Journal (MSEJ) 5 (2):6084-95. https://doi.org/10.37385/msej.v5i2.7085.