WIDYAWONO, Bryan. STUDI PERSEPSI KONSUMEN TERHADAP VALUE PROPOSITION PRODUK SAMBAL ROAR. PERFORMA, [S. l.], v. 2, n. 2, p. 162–170, 2018. DOI: 10.37715/jp.v2i2.449. Disponível em: https://ojs.somebut.my.id/index.php/performa/article/view/449. Acesso em: 19 feb. 2026.