AP Putra, A., Erlinda, E., & Yusfahmi, M. (2024). Sales System in the Endocell Mobile Phone Business Using the CRM (Customer Relationship Management) Method) in Kompe Berangin Village, Cerenti District. JURNAL TEKNOLOGI DAN OPEN SOURCE, 7(1), 10 - 21. https://doi.org/10.36378/jtos.v7i1.3860