Tafirenyika, Joice, and Christopher Mandizvidza. “The Evolution of Management Theories: Implications for Supervisory Practices on the Early Childhood Development Programme in Zimbabwe”. The Namibia CPD Journal for Educators (February 21, 2018): 158–175. Accessed July 3, 2024. https://journals.unam.edu.na/index.php/NCPDJE/article/view/1285.