ULPA, A.; ASIATI, D. I.; NURRAHMI, M. The Effect of Leadership and Training on Employee Performance through Competency at PT Pertamina Drilling Services Project Sumatera Bagian Selatanroject Sumatera Bagian Selatan. International Journal of Marketing & Human Resource Research, [S. l.], v. 5, n. 2, p. 62 - 82, 2024. DOI: 10.47747/ijmhrr.v5i2.1728. Disponível em: https://www.journal.jis-institute.org/index.php/ijmhrr/article/view/1728. Acesso em: 7 oct. 2026.