Ánh sáng có lợi cho sức khỏe của dân văn phòng
Cập nhật: 09:48 07/06/2013 GMT+7
Ánh sáng mặt trời trong văn phòng có thể ảnh hưởng rất lớn đến sức khỏe, giấc ngủ của nhân viên làm việc.
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