Prasetyo, A., & Sofyan, S. B. (2022). Workshop on Leadership and Negotiation Techniques as an Effort to Improve the Human Resource of PT Shimano Batam’s Labor Union. MITRA: Jurnal Pemberdayaan Masyarakat, 6(2), 139–147. https://doi.org/10.25170/mitra.v6i2.3168