riad99 profile image

mohamed nasah (riad99)

Joined 5 years ago




Also follow me on:

My name is Riad and I love writing articles

Write articles in several categories

In 2012 I left writing articles because of working conditions

Currently I am without work

So write my articles

I love reading and I want to work in a global company books

Mastered computer programming and love learning Computational Science

Show: All
  • All
  • Business and Employment (1)
  • HubPages Tutorials and Community (2)
  • Technology (3)
  • All
  • Business and Employment (1)
  • The conservation of human resource

    The conservation of human resource

    5 years ago

    The conservation of human resource As producers, human beings are positive resources, adding greatly to the sum total of our industrial production. As consumers, they are negative resources. The conservation of...