Ndi chitukuko cha sayansi ndi ukadaulo, zida zambiri zatsopano zogwirira ntchito ndi zinthu zimabwera pamsika.NDC, potsatira zofuna zamalonda, idagwirizana ndi akatswiri azachipatala ndikupanga zida zosiyanasiyana zapadera zamakampani azachipatala.Makamaka panthawi yovuta yomwe CO ...
Werengani zambiri