1. Aziz Azmahani, Khairiyah M. Yusof, Jamaludin M. Yatim. (2012). Evaluation on the Effectiveness of Learning Outcomes from Students’ Perspectives. Journal of Procedia - Social and Behavioural Sciences, (56), 22-30.
2. Bundsgaard Jeppe, Thomas Illum Hansen. (2011). Evaluation of Learning Materials: A Holistic Framework DPU. Journal of Learning Design, 4(4), 31-44.
3. Dyson, R. and Renk, K. (2006). Freshman Adaptation to University Life: depressive symptoms, stress, and coping. Journal of Clinical Psychology. Fitzpatrick, R., Rokshar, C. (2005). The Treatment of Melasma with Fractional Photo the Molysis A Pilot Study. Journal American Society dor Dermatologic Surgery.
4. Gooch Deanna L. (2012). Kansas Research, Development and Validation of a School Leader’s Resource Guide for The Facilitation of Social Media Use by School Staff. Kansas: Kansas State University press.
5. Hiltz Goldman. (2004). Media Mixes and Learning networks. In S.R. Hiltz and R. (Eds). Learning Together Online: Research asynchronous learning, pp. 215–237.