1.
Fitriana S, Darmawan R, Utami H, Fedrina R, Agustin R. Analysis of Customer Relationship Management (CRM) System in Sales of Plus Hajj Product in PT. Fajrul Ikhsan Wisata (ESQ Tours Travel). ichelss [Internet]. 2022 Nov. 21 [cited 2026 Jun. 1];2(1):953-61. Available from: https://journal.unj.ac.id/unj/index.php/hispisi/article/view/31004