Simple Technology of Material Physics of Groundwater Conservation in Dealing with Climate Change in Disaster Areas of North Sumatera by Indri Dayana*, Habib Satria, Muhammad Fauzi, Adi Rahwanto, Martha Rianna

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Eco-friendly utilization of chitosan from shrimp shells for used lubricating oil cleaning by Muhammadin Hamid, Indri Dayana, Dewi Sholeha, Muhammad Fadlan Siregar, Indra Roza, Junaidi, Martha Rianna, Hadi Wijoyo

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Development of Potato Nano Carbon as Electrode for Supercapacitors Achieves Green-Sustainable Development Goals by Indri Dayana, Dadan Ramdan, Moranain Mungkin, Habib Satria, Muhammad Fadlan Siregar, Martha Rianna, Juliaster Marbun, Siti Utari Rahayu

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Study of Crystal Structure, Lattice Strain, and Elemental Content of Natural Iron Sand Nanoparticles Synthesized by the Coprecipitation Method by Tulus Na Duma, Syahrul Humaidi, Erna Frida, Mohd. Mustafa Awang Kechik, Muhammadin Hamid, Martha Rianna, Novita, Rahmadhani Banurea, Norazimah Mohd Yusof, Nur Jannah Azman

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Characterization of BaFe12O19/Co3O4 using mechanical alloying approach for microwave absorbing materials by Martha Rianna, Graselita M.P. Lumban Batu, Adhere L., Timbangen Sembiring, Muhammad Khalid Hussain, Akrajas Ali Umar, Nanang Sudrajat, Eko Arief Setiadi, Anggito Pringgo Tetuko, Perdamean Sebayang

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Polyethylene glycol-magnetite composite encapsulated concrete as a thermal energy storage by Achmad M.S. Sebayang, Syahrul Humaidi, Timbangen Sembiring, Anggito P. Tetuko, Erna Frida, Perdamean Sebayang, Martha Rianna, Amdy Fachredzy, Muhammad A.H. Nabawi, Muhammad Fauzi, Eko A. Setiadi, Nining S. Asri, Ayu Yuswita Sari

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