鸡蛋与咀嚼维生素:哪种干预措施能提高中国农村的营养和考试成绩?

Eggs versus chewable vitamins: Which intervention can increase nutrition and test scores in rural China?

China Economic Review · 2012
被引 31
人大 A-ABS 2
营养经济学农村发展教育经济学健康干预评估