Gaitanidou, A., Laios, A., Derri, V. and Chatzoudes, D. 2023. Transformational and Instructional Leadership in Cross-Thematic Teaching. International Journal of Education Policy and Leadership. 19, 1 (Jul. 2023), 22 pp. DOI:https://doi.org/10.22230/ijepl.2023v19n1a1193.