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Mutia, Putri and Ngatijo, - and Fahyuan, Helga Dwi (2021) Pengaruh Jenis Serat Alam Terhadap Koefisien Absorpsi Bunyi Sebagai Peredam Kebisingan. Jurnal Ilmu Fisika dan Pembelajarannya (JIFP), 3 (1). pp. 18-23. ISSN 2549-6158
Deswardani, Frastica and Fahyuan, Helga Dwi and Nurhidayah, Nurhidayah and Afrianto, M. Ficky and Nazarudin, Nazarudin and Nelson, Nelson (2020) ANALISIS GUGUS FUNGSI PADA TiO2/BIOCHAR DENGAN SPEKTROSKOPI FTIR (FOURIER TRANSFORM INFRARED). Journal online of Physics, 5 (2). pp. 54-58. ISSN 2502-2016
Fahyuan, Helga Dwi and Deswardani, Frastica and Nurhidayah, Nurhidayah and Afrianto, M Ficky and Heriansyah, Heriansyah and Nazarudin, Nazarudin and Nelson, Nelson (2019) The effect of doping variation on band gap energy and crystal structure of Biochar/TiO2 thin layer. Journal of Physics: Conference Series, 1731 (012060). pp. 1-8. ISSN 1742-6596
LESTARI, JULIANTI and Fahyuan, Helga Dwi and Ngatijo, - (2018) PENGARUH DOPING Al TERHADAP TiO2 SEBANGAI PENDEGRADASI LIMBAH TEKSTIL METYELENE BLUE. Jurnal Online of Physisc, 3 (2). pp. 15-20. ISSN 2502-2016
Almustari, - and Fahyuan, Helga Dwi and Ngatijo, - (2018) PEMBUATAN DAN UJI KARAKTERISTIK SEMEN MICROFINE TIPE PCC (PORTLAND COMPOSITE CEMENT) BLAINE BERBEDA. cement of physics.
Nurhidayah, Nurhidayah and Peslinof, Mardian and Afrianto, M F and Fahyuan, Helga Dwi and Heriyansyah, H and Damris, M (2021) The design of furnace for biochar production by using vacuum pump and temperature manual control. IOP Publishing.
