“Pemasaran Perumahan PT. Permata Indah Bersinar Menggunakan E- CRM Berbasis WEB”. Media Aplikom 12, no. 2 (December 10, 2020): 61–67. Accessed November 28, 2025. https://journal.stikomyos.ac.id/index.php/media-aplikom/article/view/257.