Gratitude as a Predictor of Organizational Citizenship Behavior among Police Personnel Gading Suchaila, Rianda Elvinawanty, Satria Kelana Purba Dasuha, Yohana Nababan, Mukhaira El Akmal Jurnal Sublimapsi Vol. 7 No. 2 2026 DOI 10.36709/sublimapsi.v7i2.382