AKPAN, EKOM ETIM, Anthony Aniagbaoso Igwe, Waribugo Sylva, and Ben Etim Udoh. 2024. “Service System Innovation and Competitiveness In an Emerging Market: The Moderating Role of Managerial Competencies”. Gadjah Mada International Journal of Business 26 (1), 83-108. https://jurnal.ugm.ac.id/v3/gamaijb/article/view/15828.