Umoh, Roseline Aniekan, et al. “Principals’ Data-Driven Decision-Making and Administrative Effectiveness in Secondary Schools in Calabar Education Zone of Cross River State, Nigeria”. International Journal of Public Management and Social Science Research (IJPMSSR), vol. 1, no. 2, June 2025, pp. 44-57, https://transglobalpunet.com/index.php/ijpmssr/article/view/36.