Tatyana P. Gordienko, Lyenuza Z. Tarkhan, Mariia I. Mykhniuk,. “Reflective Approach to Self-Assessment of Professional Educational Activity by University Professors”. Opción 350 (August 3, 2019): 1172-1187. Accessed September 26, 2025. http://www.produccioncientifica.luz.edu.ve/index.php/opcion/article/view/24575.