Moré Estupiñán, Mavel. 2009. Concepción Teórico - Metodológica De Formación Ambiental Permanente Del Directivo Educacional Del Siglo XXI / Theoretical - Methodological Conception about the Permanent Environmental Formation of the Members of the Education Board of the XXI Century. Monteverdia 3 (1), 17-25. https://revistas.reduc.edu.cu, revistas.reduc.edu.cu/index.php/monteverdia/article/view/1783.