• Small Industries on Chert Nodules and Geodes in Jabal Nefusah 

      Shiref, Yousef M. (مركز البحوث والاستشارات العلمية, 2021-09-15)
      Small industries are among the things that society needs to employ young people looking for work, especially new graduates from engineering institutes and colleges, and from these industries that do not need a large ...