| The Effect of Pre-heating Temperature on Structural and Optical Properties ZnO Thin Film Synthesized using Sol-Gel spin Coating Method N Siregar, Motlan Journal Of Physics: Conference Series 1120, 1-6, 2018 | 184* | 2018 |
| Fabrication of Dye‐Sensitized Solar Cells (DSSC) Using Mg‐Doped ZnO as Photoanode and Extract of Rose Myrtle (Rhodomyrtus tomentosa) as Natural Dye N Siregar, Motlan, JH Panggabean, M Sirait, J Rajagukguk, NS Gultom, ... International Journal of Photoenergy 2021 (1), 4033692, 2021 | 52* | 2021 |
| Preparation and characterization of natural bentonite in to nanoparticles by co-precipitation method M Sirait, N Bukit, N Siregar AIP conference proceedings 1801 (1), 2017 | 40 | 2017 |
| Synthesis and characterizations of natural limestone-derived nano-hydroxyapatite (HAp): a comparison study of different metals doped HAps on antibacterial activity K Sinulingga, M Sirait, N Siregar, H Abdullah RSC advances 11 (26), 15896-15904, 2021 | 35 | 2021 |
| Investigation of antibacterial activity and cell viability of Ag/Mg and Ag/Zn co-doped hydroxyapatite derived from natural limestone K Sinulingga, M Sirait, N Siregar, ME Doloksaribu ACS omega 6 (49), 34185-34191, 2021 | 27 | 2021 |
| Synthesis of hydroxyapatite from limestone by using precipitation method M Sirait, K Sinulingga, N Siregar, RSD Siregar Journal Of Physics: Conference Series 1462 (1), 012058, 2020 | 18 | 2020 |
| The effect magnesium (Mg) on structural and optical properties of ZnO: Mg thin film by sol-gel spin coating method N Siregar, J Panggabean Journal of Physics: Conference Series 1428 (1), 012026, 2020 | 18 | 2020 |
| Syntesis and Characterization of Hydroxyapatite from Broiler Eggshell M Sirait, K Sinulingga, N Siregar, YF Damanik The 1st International Conference on Physics and Applied Physics 2221, 1-4, 2019 | 16 | 2019 |
| Pengaruh Model Pembelejaran Kooperatif Tipe Group Investigation terhadap Hasil Belajar pada Materi Listrik Dinamis SL Simanjuntak, N Siregar INPAFI (Inovasi Pembelajaran Fisika) 2 (2), 2014 | 15 | 2014 |
| The effect of problem based learning based on multiple representations to the students’ science conceptual understanding MP Simanjuntak, N Marpaung, L Sinaga, N Siregar Journal of Physics: Conference Series 1819 (1), 012029, 2021 | 10 | 2021 |
| Improvement of graph interpretation ability using hypertext-assisted kinematic learning and formal thinking ability SR Manurung, S Mihardi, NY Rustaman, N Siregar Jurnal Pendidikan Fisika Indonesia 14 (1), 1-6, 2018 | 10 | 2018 |
| The effect of concentration of structure and optical properties of thin films synthesized by sol-gel methods spin coating N Siregar, E Marlianto, S Gea Universitas Sumatera Utara, 2015 | 9 | 2015 |
| Synthesis of nanobentonite as heavy metal adsorbent with various solvents M Sirait, S Gea, N Bukit, N Siregar, C Sitorus Oriental Journal of Chemistry 34 (4), 1854, 2018 | 8 | 2018 |
| Characterization of hydroxyapatite by cytotoxicity test and bending test M Sirait, K Sinulingga, N Siregar, ME Doloksaribu Journal of Physics: Conference Series 2193 (1), 012039, 2022 | 7 | 2022 |
| PENGARUH WAKTU TAHAN KALSINASI FILM TIPIS ZNO TERHADAP EFISIENSI DSSC (DYE SENSITIZIED SOLAR CELL) YANG MENGGUNAKAN DYE DARI BUAH NAGA MERAH SK Pinem, S Nurdin JURNAL EINSTEIN 5 (3), 47-57, 2018 | 6 | 2018 |
| The effect of spin coating speed on structural and optical properties of ZnO and ZnO/dye thin films synthesized by sol-gel spin coating method N Siregar, JH Panggabean Journal of Physics: Conference Series 1819 (1), 012050, 2021 | 5 | 2021 |
| The effect of strengthening the prerequisite knowledge on student learning outcomes on the topic of values and eigenvectors N Siregar, I Novalinda Gravity: Jurnal Ilmiah Penelitian dan Pembelajaran Fisika 6 (2), 2020 | 5 | 2020 |
| Pengaruh Model Pembelajaran Scientific Inquiry Terhadap Pengetahuan Konseptual dan Keterampilan Proses Sains Siswa SMA EM Br Meliala UNIMED, 2018 | 5 | 2018 |
| Pengaruh Model Pembelajaran Problem Solving Terhadap Hasil Belajar Siswa pada Materi Listrik Dinamis di Kelas X SMA Mulia Medan TP 2012/2013 DP Siregar UNIMED, 2013 | 5 | 2013 |
| Synthesis and optical properties of Sb-doped ZnO thin film by sol-gel spin coating method N Siregar, M Sirait Journal of Physics: Conference Series 2193 (1), 012063, 2022 | 4 | 2022 |