مجاميع الصخور المسحوقة في السعودية
مجاميع المعرفة
Aggregates of Knowledge Review is an international, doubleblind peerreviewed, Biannual( (April, October)and free of charge, openaccess journal, published by the Institute of Economic, Business and Management Sciences Ali Kafi University Center – Tindouf, Algeria. The journal focuses on the following topics: Economics, Econometrics and Finance; Economics and ....