Gultom, Pesta, Sri Rezeki, Widalicin Januarty, and Andy Sutantio. 2024. “The Influence of Product Knowledge and Customer Relationship Marketing on Interest Customer Buy at PT. RHB Sekuritas Indonesia Medan”. Jurnal Mantik 8 (1):860-71. https://doi.org/10.35335/mantik.v8i1.5246.