seminar on the rational use of electricity معنى
- الحلقة الدراسية المعنية بالاستخدام الرشيد للكهرباء
كلمات ذات صلة
- seminar on the prevention and control of groundwater pollution معنى
- seminar on the prevention and treatment of juvenile crime and delinquency in the context of development معنى
- seminar on the prevention and treatment of juvenile delinquency معنى
- seminar on the problems of port operations in africa معنى
- seminar on the promotion and development of the machine tool industries in countries of asia and the pacific معنى
- seminar on the realization of economic and social rights with reference to developing countries معنى
- seminar on the review and development of national accounts معنى
- seminar on the rights of the child in a world with hiv and aids معنى