And with respect to the Gospel, the apostle Paul says, "Though we, or an angel from heaven, preach any other gospel unto you, than that which we have preached unto you--and ye have received, let him be accursed", #Ga 1:8,9.

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.
