Cruz Raudez, Amy Del Rosario and Jiron, Jacqueling del Carmen and Lagos López, Melida Alicia (2019) Effective methods to use audio visual aids for vocabulary learning in first grade students “Salomón Ibarra” elementary school during the first semester of 2010. Diploma thesis, Universidad Nacional Autónoma de Nicaragua, Managua. Artículo de Discusión. UNAN-FAREM^cEstelí, Nicaragua, Estelí, Nicaragua.
Cruz Raudez, Amy Del Rosario and Jiron, Jacqueling del Carmen and Lagos López, Melida Alicia (2019) Effective methods to use audio visual aids for vocabulary learning in first grade students “Salomón Ibarra” elementary school during the first semester of 2010. Licenciatura thesis, Universidad Nacional Autónoma de Nicaragua, Managua.