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PENERAPAN STRATEGI WORD TO MOUTH DALAM SISTEM JUAL BELI DI KELOMPOK PENGAJIAN SALAFI KOTA PEKANBARU. j.komun. [Internet]. 2017 Dec. 28 [cited 2025 Jul. 4];5(1). Available from:
https://e-jurnal.lppmunsera.org/index.php/LONTAR/article/view/483