“Citra Merek Smartphone Samsung terhadap Keputusan Pembelian Mahasiswa Universitas Sam Ratulangi Manado” (2020) Productivity, 1(5), pp. 404–410. Available at: https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/30729 (Accessed: 3 October 2026).