Nainggolan, Irwana, <p class="Addresses">Chemistry Department, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Medan 20155, Sumatera Utara, Indonesia</p>
Nainggolan, Irwana, <p>Chemistry Department, Faculty of Mathematic and Natural Science, Universitas Sumatera Utara, Indonesia</p>
Nasfianti, Iis, Department of mathematics, university of riau
Nasution, Mahyuddin K.M, University of Sumatera Utara
Nasution, Tulus Ikhsan, Physics Department, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Medan 20155, Sumatera Utara, Indonesia
Nasution, Tulus Ikhsan, <p>Physics Department, Faculty of Mathematics and Natural Science, Universitas Sumatera Utara, Medan, 20155, Indonesia</p><p>Center of Excellence Green Chitosan and Advance Materials, Universitas Sumatera Utara, Medan, 20155, Indonesia.</p> (Indonesia)
nirwana, nirwana, Program Studi Pendidikan Fisika, FKIP, Universitas Bengkulu
Noer, Zikri, Departmentof Physics, Faculty of  Mathematics and Sciencs, University of Sumatera Utara Jalan Bioteknologi No.1 Kampus USU, Medan, 20155
Noer, Zikri
Nurhasanah, Nurhasanah, Department of Statistics, Faculty of Mathematics and Natural Sciences, Syiah Kuala University
Nurhasanah, Nurhasanah, Statistics Department, Faculty of Mathematics and Natural Sciences (FMIPA) Syiah Kuala University Banda Aceh, Indonesia

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