Kalkan, U., Koc, A., & Karadag, M. (2017). Evaluation of class passing conditions of the failed students from the viewpoints of Education Ministry Officials, school administrators, teachers and parents. New Trends and Issues Proceedings on Humanities and Social Sciences, 4(9), 46–55. https://doi.org/10.18844/prosoc.v4i9.3041 (Original work published January 11, 2018)