Nurani, Widiya, Nuriadi Manurung, and Muthia Dewi. “The Customer Relationship Management Concept Increases Customer Commitment”. ITEJ (Information Technology Engineering Journals) 10, no. 2 (August 20, 2025): 267 - 277. Accessed August 23, 2025. https://www.syekhnurjati.ac.id/journal/index.php/itej/article/view/276.