Mitchell, C. and Castle, J.B. (2005) The Instructional Role of Elementary School Principals. Canadian Journal of Education, 28, 409-433.
 Southworth, G. (2002) Instructional Leadership in Schools: Reflections and Empirical Evidence. School Leadership & Management, 22, 73-91.
 Blasé, J. and Blasé, J. (2000) Effective Instructional Leadership: Teachers’ Perspectives on How Principals Promote Teaching and Learning in Schools. Journal of Educational Administration, 38, 130-141.
 Mestry, R. (2013) The Innovative Role of the Principal as Instructional Leader: A Prerequisite for High Student Achievement? International Proceedings of Economics Development & Research, 60, 119-123.
 Bush, T. and Glover, D. (2003) School Leadership: Concepts and Evidence. A Review of Literature Carried out for National College for School Leadership. National College for School Leadership, Nottingham.
 Ylimakia, R., Jacobsona, S.L. and Drysdaleb, L. (2007) Making a Difference in Challenging, High-Poverty Schools: Successful Principals in the USA, England, and Australia. School Effectiveness and School Improvement, 18, 361-381.
 Hallinger, P. and Murphy, J. (1985) Assessing the Instructional Management Behaviour of Principals. The Elementary School Journal, 86, 217-247.
 Hallinger, P. (2009) Leadership for 21st Century Schools: From Instructional Leadership to Leadership for Learning. Public Lecture Series of the Hong Kong Institute of Education on 23 September 2009.
 Hallinger, P. (2010) Geteways to Leading Learning Leading Educational Change. APCLC Monograph Series, 2010, No. 1.
 Phillips, J.A. (2014) Manager-Administrator to Instructional Leader Shift in the Role of the School Principal.
 Cohen, L., Manion, L. and Morrison, K. (2000) Research Methods in Education. 5th Edition, Routledge Falmer, London.
 Marks, M. and Printy, M. (2003) Principal Leadership and School Performance: An Integration of Transformational and Instructional Leadership. Educational Administration Quarterly, 39, 370-397.
 Andrews, R.L., Basom, R.M. and Basom, M. (1994) Instructional Leadership: Supervision That Makes a Difference. Theory in Practice, 30, 97-101.