Kusumajaya, R.A. 2017. MENINGKATKAN CUSTOMER RELATIONSHIP BERDASARKAN ANALISIS CONCEPTUAL MODEL OF CUSTOMER KNOWLEDGE MANAGEMENT (CKM). JURNAL NUSANTARA APLIKASI MANAJEMEN BISNIS. 2, 2 (Oct. 2017), 87-100. DOI:https://doi.org/10.29407/nusamba.v2i2.812.