Desen, K., Maswandi, M. and Isnaini, I. 2025. The Contribution of the Labor Union in Improving the Welfare of Workers at PT. Sari Makmur Tunggal Mandiri. Journal of Public Representative and Society Provision. 5, 2 (Apr. 2025), 332-340. DOI:https://doi.org/10.55885/jprsp.v5i2.537.