Hermawan A, Sunaryo W, Hardhienata S. Optimal Solution for OCB Improvement Through Strengthening of Servant Leadership, Creativity, and Empowerment. ATT [Internet]. 2023 Jan. 5 [cited 2025 Oct. 4];5(1Sp):11-2. Available from: https://att.aptisi.or.id/index.php/att/article/view/307