Kusumo, S.W.B. , Wibowo, A.Y., Wicaksono, A.F. , Antono, J. and Nuvida, L.O. 2026. The effectiveness of Customer Relationship Management (CRM) systems in improving optical customer satisfaction: A meta-analysis and bibliometric study (Jakarta Region). Priviet Social Sciences Journal. 6, 1 (Jan. 2026), 321–333. DOI:https://doi.org/10.55942/pssj.v6i1.540.