References

  • Dr. Ahmed Eltigani Elmansouri – GM Alrawabi Dairy company – Dubai   00971506537667   eltiganiae@yahoo.com
  • Dr. Abubakr Ibrahim M.Hussien – Development Studies and Research Institute (DSRI) – University of abubakrhussein@hotmail.com , 0096599251053.
  • Dr. Mohammed Osman Abd Allah – Associate professor – University of Khartoum. abutahany@yahoo.com.
  • Professor. Ibtisam Elzubier- Professor- University of Khartoum- ibtisam_elzubeir@yahoo.com.
  • Dr. Abdelnaser Fadel – Professor- University of Khartoum- nasir.fadel@gmail.com.