1. Elementary statistics for technologist;Alkarkhi,2012
2. Assessment of arsenic and heavy metal contents in cockles (Anadara granosa) using multivariate statistical techniques;Alkarkhi;Journal of Hazardous Materials,2008
3. Chi, Y. (2009). R Tutorial, An Introduction to statistics - Estimated Simple Regression Equation [Online]. Available: Accessed 07.03.16.
4. Daniel, H. (2013). Blog Archives, High Resolution Figures in R [Online]. Available: Accessed 15.07.17.
5. Applied regression analysis;Draper,1998