Hernández Hachavarría, C. M. ., Vázquez Cardero, Y., & Palma Salazar, L. (2017). VARIABLES IN THE IMPLEMENTATION OF SCHOOL INVESTIGATIVE ACTIVITIES AND PROJECTS: TWO EXAMPLES. Didáctica Y Educación ISSN 2224-2643, 8(7), 89–112. Retrieved from https://revistas.ult.edu.cu/index.php/didascalia/article/view/714