“Look upon Zion, the city of our solemnities, there the glorious LORD will be unto us a place of broad rivers and streams; wherein shall go no galley with oars, neither shall gallant ship pass thereby,” Is33:20,21.

Dalili da aka ba aka ba da sassan yankunan da suka dace wanda masu sayarwa za su iya amfani da su don gudanar da bincike da gwada gwagwarmayar fasahar su da kuma inganta sakon su don sake tabbatar da masu amfani.
