Sabbah Khan, Noor Us, y Yunus Yildiz. «Impact of Intangible Characteristics of Universities on Student Satisfaction». Amazonia Investiga 9, no. 26 (febrero 21, 2020): 105–116. Accedido marzo 14, 2026. https://mail.amazoniainvestiga.info/index.php/amazonia/article/view/1122.