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Fak. Keguruan dan Ilmu Penddidikan, Universitas Muhammadiyah Sumatera Utara,
Indonesia
Karina Wanda
Fak. Keguruan dan Ilmu Penddidikan, Universitas Muhammadiyah Sumatera Utara,
Indonesia
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LPPM Universitas Muhammadiyah Tapanuli Selatan, Jl. Stn Mhd Arief No 32 Kota Padangsidimpuan, Sumatera Utara. Telp/Fax 063421696. e-mail : lppm@um-tapsel.ac.id. site: http://um-tapsel.ac.id Klik for more information
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