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Bu Makaleye Atıf Yap
Arı, M., Tuğrul, B., Uzmen, S., Aydoğan, S. (2000). Helping six year old kindergarten children to acquire the concept of conservation through training. Hacettepe Üniversitesi Eğitim Fakültesi Dergisi, Cilt: 18 Sayı: 18. https://ajindex.com/articles/1405384