WHY TEACHERS UNIVERSALLY FAVOR THE METRIC SYSTEM*
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1906
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1906.tb02824.x