“Volunteer Performance Model Through Leadership Motivation Training Loyalty: Model Kinerja Relawan Melalui Pelatihan Motivasi Kepemimpinan dan Loyalitas”, IJPPR, vol. 27, no. 1, p. 10.21070/ijppr.v27i1.1491, Mar. 2026, doi: 10.21070/ijppr.v27i1.1491.