راهنمای کلی مدیریت برای گله های تخمگذار تجارتی بوونز و دکالب سفید

71 Pages · 2016 · 1.83 MB · Persian
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“ Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow." ” ― Mary Anne Radmacher
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