Hallinger, Philip. “Leadership for Learning: Lessons from 40 Years of Empirical Research”. Journal of Educational Administration, vol. 49, no. 2, 2011, pp. 125-42, https://doi.org/10.1108/09578231111116699.
Hallinger, P. (2011). Leadership for learning: lessons from 40 years of empirical research. Journal of Educational Administration, 49(2), 125-142. https://doi.org/10.1108/09578231111116699
Hallinger P. Leadership for learning: lessons from 40 years of empirical research. Journal of Educational Administration. 2011;49(2):125-42.