N. Dwiyanti, D. M. Siddiq, F. D. Hanifa, and J. Tembo, “Coworker Altruism and Workplace Compassion as Predictors of Employee Performance: The Mediating Role of Employee Engagement in A State-Owned Plantation Company”, ijief, vol. 6, no. 2, pp. 123–140, Sep. 2026.