Helvacı, M. A., Koçak, S. ve Öztürk-Yüzer, N. (2018). School Managers, Emotion Management Competencies During Change management’ Scale: Development, validity and reliability. International Journal on Lifelong Education and Leadership, 4 (2), 8-15. https://dergipark.org.tr/tr/pub/ijlel/issue/41857/482692