Marisa, M. et al. 2026. Analysis of Quality Management in Improving Product Quality: A Case Study of UD Ramayana Agro Mandiri, Batu City. Review of Human Resources, Organizational Change, and Economic Impact. 1, 4 (Jan. 2026), 188–193. DOI:https://doi.org/10.70865/rhrocei.v1i4.224.