Article
蘇聯對於兒童教育法 - Method of Children's Education in the Soviet Union
Subject matters: 文章 - essay,
Language level: Mixed
Keywords: children, educational methods, Soviet Union,
Persons:
天真 Tianzhen (Author)
Article
廢物利用 - Use of Waste Material
Subject matters: 新知 - new knowledge,
Language level: Mixed
Keywords: practical instruction ,