// todo need optimize like in event.jsp. Add indexing or not indexing this page. Measuring striving for understanding and learning value of geometry: a validity study (13 ч 53 мин, 25 июн 2017 г. – 11 ч 22 мин, 1 март 2018 г.) (Лента времени)
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Measuring striving for understanding and learning value of geometry: a validity study (13 ч 53 мин, 25 июн 2017 г. – 11 ч 22 мин, 1 март 2018 г.)

Добавлено на ленту времени:

SMTSL

ByMaria
14 дек 2017

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13 ч 53 мин, 25 июн 2017 г.
11 ч 22 мин, 1 март 2018 г.
~ 8 months
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