Engineering economics / Tutorial / PPT / Videos

http://en.wikipedia.org/wiki/Engineering_economics
http://www.isr.umd.edu/~austin/ence202.d/economics.html

https://www.slideshare.net/PrabuU2/introduction-to-engineering-economics 

https://www.google.com/search?tbm=vid&hl=en&source=hp&biw=1024&bih=606&q=engineering+economics