Writer : peter Frost ؛
Journal:تعاون و کشاورزی»دوره جدید، تیر 1372 - شماره 22 ISC (5 page(s) - From 39 to 43 )
Keywords:مدیرانمدیریت زمانبرنامهکارکنترلصرفطول روز
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