Darudiato, S., Novianto, C., Hendra, H., Reynaldo, R. and Selvi, S. 2011. Membangun Customer Relationship Management dalam Bisnis. ComTech: Computer, Mathematics and Engineering Applications. 2, 2 (Dec. 2011), 1350-1358. DOI:https://doi.org/10.21512/comtech.v2i2.2962.