Answer:
Efe and Twsa.
I hope this helped; there are multiple tribes.
The institutionalization of trade has been around since the "value theory" of David Ricardo in 1817, which argues that some countries had more feasible conditions to produce a better output of certain products in comparison to others. As a result, they had to engage in trade with other countries that had products they lacked.
"Labor" and "resources" are the key factors that fuel trade. As some countries have a cheaper labor force, it makes their products have competitive prices in the market. On the other hand, certain countries have scarce resources that many other countries do not have such as gold and other minerals. Therefore they have to engage in trade with the countries that extract them from their soil.
in addition to the core and variable charateristics the following two main program types are currently found in the U.S one way ( foreign language immersion) and two way dual language immersuon.
That Anglo Saxon is late for clads
King Joseph the 2nd in Australia