AHMED ROBULLA SAKTI; JERRY HEIKAL. Integrasi RFM dan Etnografi dalam Segmentasi Buyer B2B PT Kaltim Prima Coal: Identifikasi Churn Risk dan Pengembangan Online Value Proposition. ARMADA : Jurnal Penelitian Multidisiplin, [S. l.], v. 4, n. 8, p. 4239–4250, 2026. Disponível em: https://ejournal.45mataram.ac.id/index.php/armada/article/view/3515. Acesso em: 9 sep. 2026.