Items by "Umara, Yudi"

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Umara, Yudi and Syahputra, Edi and Mukhtar, Mukhtar (2019) The Development of Mathematic Instructional Administration to Improve Problem Solving Ability. In: Proceedings of the 2nd Annual Conference of Engineering and Implementation on Vocational Education (ACEIVE 2018), 3rd November 2018, North Sumatra, Indonesia.

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