Pengaruh Kualitas Produk, Merek Dan Personal Selling Terhadap Keputusan Pembelian Merek U-Lock Pada PT. Union Tetap Jaya Medan. Management Studies and Entrepreneurship Journal (MSEJ), [S. l.], v. 3, n. 4, p. 2610–2619, 2022. DOI: 10.37385/msej.v3i4.922. Disponível em: https://journal.yrpipku.com/index.php/msej/article/view/922. Acesso em: 21 may. 2026.