Ritonga, M. L., Y. S. J. Nasution, and M. I. Harahap. “The Analysis of the Role of Electronic Word of Mouth (E-WOM) in Increasing the Number of Customers at Bank Sumut Syariah KCP Rantauprapat”. Kontigensi : Jurnal Ilmiah Manajemen, Vol. 12, no. 1, June 2024, pp. 461-70, doi:10.56457/jimk.v12i1.578.