تعداد ۱ پاسخ غیر تکراری از ۱ پاسخ تکراری در مدت زمان ۰,۴۵ ثانیه یافت شد.

1. Tinkering

پدیدآورنده : Curt Gabrielson.

کتابخانه: Center and Library of Islamic Studies in European Languages (Qom)

موضوع : Handicraft-- Study and teaching.,Handicraft.,Models and modelmaking.,Technology-- Education (Primary)

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