Peña-Ayala. (2013). Intelligent and Adaptive Educational-Learning Systems (1.). Springer Berlin Heidelberg.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPeña-Ayala. Intelligent and Adaptive Educational-Learning Systems. 1. Springer Berlin Heidelberg, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPeña-Ayala. Intelligent and Adaptive Educational-Learning Systems. 1. Springer Berlin Heidelberg, 2013.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.