[ 发表于: Arab Universities Journal of Agricultural Sciences ]
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[Khat phenomena Yemen: a socio-economical study in Taiz and Ibb governorates]. [Arabic]
1995
Barakat M.M.
Wolters Kluwer - United States of America
[Khat phenomena Yemen: a socio-economical study in Taiz and Ibb governorates]
1995
Barakat, M.M. (Ain-Shams Univ., Cairo (Egypt). Faculty of Agriculture)
Egyptian Documentation and Information Centre for Agriculture - Egypt
