“Pengaruh Ekuitas Merek Dan Deferensiasi Produk Terhadap Kepuasan Pelanggan PT Laris Sumut Makmur Medan”. Management Studies and Entrepreneurship Journal (MSEJ), vol. 3, no. 3, Aug. 2022, pp. 1216-30, https://doi.org/10.37385/msej.v3i3.864.