PENERAPAN STRATEGI WORD TO MOUTH DALAM SISTEM JUAL BELI DI KELOMPOK PENGAJIAN SALAFI KOTA PEKANBARU. LONTAR: Jurnal Ilmu Komunikasi, [S. l.], v. 5, n. 1, 2017. DOI: 10.30656/lontar.v5i1.483. Disponível em: https://e-jurnal.lppmunsera.org/index.php/LONTAR/article/view/483. Acesso em: 6 jul. 2025.