JONNY, J. Training Effectiveness at PT XYZ Using Kirkpatrick Model and Return on Investment of Training (ROI-Training). Binus Business Review, [S. l.], v. 7, n. 2, p. 137-141, 2016. DOI: 10.21512/bbr.v7i2.1728. Disponível em: https://journal.binus.ac.id/index.php/BBR/article/view/1728. Acesso em: 23 feb. 2025.