VELAZQUEZ CORDOVA BY, Gómez Hurtado I. Study on educational leadership in the directors of the Julio María Matovelle Educational Unit of Puerto Bolívar. ecosacademia [Internet]. 2022 Sep. 15 [cited 2026 Jul. 26];8(15):9-19. Available from: https://revistasojs.utn.edu.ec/index.php/ecosacademia/article/view/677