ESIDO, Yidougha. Performance Appraisal and Promotion Guidelines, a Study of Academic Staff in Niger Delta University. American Journal of Human Resources and Public Administration, [S. l.], v. 1, n. 2, p. 48–54, 2026. DOI: 10.54536/ajhrpa.v1i2.6691. Disponível em: https://journals.e-palli.com/home/index.php/ajhrpa/article/view/6691. Acesso em: 10 sep. 2026.