Hermawan, A., W. Sunaryo, and S. Hardhienata. “Optimal Solution for OCB Improvement Through Strengthening of Servant Leadership, Creativity, and Empowerment”. Aptisi Transactions on Technopreneurship (ATT), vol. 5, no. 1Sp, Jan. 2023, pp. 11-21, doi:10.34306/att.v5i1Sp.307.