TY - JOUR AU - fazllollahi, Rezvan AU - Keyhan, Javad TI - Identify the dimensions of professional leadership of preschool centers in a hybrid way JO - Educational researches VL - 18 IS - 75 SP - 0 EP - 0 PY - 2023 DO - 10.30495/educ.2023.1942584.2753 ER -