Labrada Díaz, Rafael, and Liset Labrada Escobar. “ALTERNATIVE INSTRUMENTS TO THE HYPOTHESIS IN SCIENTIFIC RESEARCH IN COMMUNICATION AND SOCIAL PROJECTION”. Revista de Ciencias Sociales, no. 178 (May 8, 2023): 127–140. Accessed August 16, 2024. https://revistas.ucr.ac.cr/index.php/sociales/article/view/55035.