SIAGIAN, Yudinar Ratnasari; SUTAN PULUNGAN; NOVITA ASWAN. Persepsi Kepuasan Konsumen terhadap Produk Kopi di UD. Tyyana Coffee. SOSMANIORA: Jurnal Ilmu Sosial dan Humaniora, [S. l.], v. 3, n. 4, p. 464–469, 2024. DOI: 10.55123/sosmaniora.v3i4.4656. Disponível em: https://journal.literasisains.id/index.php/sosmaniora/article/view/4656. Acesso em: 16 feb. 2026.