SITUMORANG, Irvan Rolyesh. Effect of Service Quality and Relational Marketing on Consumer Purchasing Decisions at PT. Garuda Teladan Biscuid Binjai North Sumatra. Jurnal Manajemen Bisnis Eka Prasetya Penelitian Ilmu Manajemen, [S. l.], v. 8, n. 2, p. 229–242, 2022. DOI: 10.47663/jmbep.v8i2.248. Disponível em: https://www.jurnal.eka-prasetya.ac.id/index.php/MBEP/article/view/248. Acesso em: 7 aug. 2026.