Principles of economics : Ch1 | مبادىء الاقتصاد : الفصل الاول
Ch1 : Economic problem and economic systems
1- Definition
2- problem
3- solving
4-Efficiency
5-Economic system
6- Questions
1- Definition
2- problem
3- solving
4-Efficiency
5-Economic system
6- Questions
همه توضیحات ...