Temitope Adetunji, A. and Minh Vu, H. 2021. Unhealthy leadership behavior and employee retention that shakes academic excellence in higher education from a critical realistic approach. Revista on line de Política e Gestão Educacional. 25, 3 (Dec. 2021), 2589–2610. DOI:https://doi.org/10.22633/rpge.v25i3.15843.