Synthesis and Characterization of the Microstructure and Functional Group Bond of Fe3o4 Nanoparticles from Natural Iron Sand in Tobelo North Halmahera by Ferni Malega, I Putu Tedy Indrayana, Edi Suharyadi

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Investigation of The Distribution and Fe Content of Iron Sand at Wari Ino Beach Tobelo Using Resistivity Method with Werner-Schlumberger Configuration by Bayu Achil Sadjab, I Putu Tedy Indrayana, Steven Iwamony, Rofiqul Umam

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The Correlation between Dye absorption Wavelength and Illumination Wavelength on DSSC Performance by Hery Suyanto, Manuntun Manurung, I Putu Tedy Indrayana, Fiar Tri Santika

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Determination of the Optical Band gap Energy from the Extraction and Evaporation of Anthocyanin Compound Sea Lettuce (Ulva Lactuca L.) Using Tauc Plot Method by Fiar Tri Santika, Hery Suyanto, Ni Luh Putu Trisnawati, I Putu Tedy Indrayana

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Effects of annealing temperature on microstructural, magnetic properties, and specific absorption rate of Zn-Ni ferrite nanoparticles by Edi Suharyadi, Sri Handika Pratiwi, I Putu Tedy Indrayana, Takeshi Kato, Satoshi Iwata, Keisuke Ohto

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Identifikasi sebaran dan Jenis Sesar Berdasarkan Analisis Data Anomali Gravitasi Topex Provinsi Maluku Utara Lembar Pulau Halmahera Utara by Bayu Achil Sadjab, I Putu Tedy Indrayana, Kurnia Kurnia, Khafidh Nur Aziz, Adrian Rahmat Nur, Harsen Berg Janis, Hanny F. Sangian

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