Studying the obstacles facing Yemeni specialists working in the field of sports injuries and the proposed procedures to overcome or reduce them Dr. Mohammed A. Haider (Author) 141-175 2014-12-31 DOI: https://doi.org/10.58963/qausrj.v13i13.192
Marketing obstacles faced by non-oil commodity exports in the Republic of Yemen: Referring to some agricultural and fish products Dr. Faiq Jumaa Hamza Al-Obaidi (Author) 37 2010-06-30 DOI: https://doi.org/10.58963/qausrj.v1i5.31