1. Abdi, H. (2003). Factor rotations in factor analyses. Encyclopedia for Research Methods for the Social Sciences. Sage: Thousand Oaks, CA, 792–795.
2. Abdi, H. & Williams, L. J. (2010). Normalizing data. Encyclopedia of Research Design, 1.
3. Aghanbati, A. (2004). Geology of Iran, Publications of the Geological Survey of Iran, 603.
4. Ali, P. J. M., Faraj, R. H., Koya, E., Ali, P. J. M., & Faraj, R. H. (2014). Data normalization and standardization: A technical report. Mach Learn Tech Rep, 1(1), 1–6.
5. Allahyari, Kh., Pourmaafi, M., & Khalatbari, M. (2012). Petrology and geochemistry of pillow lavas in Harsin area. Kermanshah Ophiolite, West Iran, Journal of Earth Sciences, 84, 198–189.