mwiko wa ugali

Kama kuna mwiko (miko) ya kusongea ugali ambayo ni imported au ya chuma au madini yoyote aniambie. Mi sijawahi iona. Kwa hili tunaweza sana. Miko yote ni miti na inatengenezwa hapahapa. From the concept of comparative advantage let's concentrate in this business so as to gain more through...