Andaryanto, A., Soetjipto, B. E., & Winarno, A. (2026). The Influence of Skill Competition Participation and Trainer Quality on Employee Performance: The Mediating Role of Learning Motivation in the Paper Manufacturing Industry. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), 9(2), 11637-11655. https://doi.org/10.31538/iijse.v9i2.9251