Cortés Villalba, Carmina, and Isidoro Gil-Leyva. “Evaluation of the Valencia’s Public Library Using “discussion Groups” and ‘survey’ Enchained Method”. Revista General de Información y Documentación 21 (January 16, 2012): 335–362. Accessed July 10, 2026. https://revistas.ucm.es/index.php/RGID/article/view/38027.