HARAHAP, Kartini. Concept and Prototype Design Differentiation Strategy Application (Case Study on Restaurants at Medan Plaza Fair, Medan City). Jurnal Ilmiah Manajemen dan Bisnis, Jakarta, Indonesia, v. 8, n. 2, p. 264–276, 2022. DOI: 10.22441/jimb.v8i2.14685. Disponível em: https://publikasi.mercubuana.ac.id/index.php/jimb/article/view/14685. Acesso em: 29 jun. 2026.