Widagdo, Suwignyo, Domingos Lemos Lopes, and Helmi Agus Salim. “Improving Employee Performance: Assessment of Leadership Style, Work Environment, and Work Motivation Aspects”. ABM: International Journal of Administration, Business and Management 5, no. 2 (November 30, 2023): 139-148. Accessed August 20, 2025. https://jurnal.itsm.ac.id/index.php/abm/article/view/1538.