Egodawatte, Gunawardena. “Mathematics Performance and Principal Effectiveness: A Case Study of Some Coastal Primary Schools in Sri Lanka”. Alberta Journal of Educational Research 58, no. 2 (August 31, 2012): 169–184. Accessed November 23, 2024. https://dev.journalhosting.ucalgary.ca/index.php/ajer/article/view/55585.