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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
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.
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.
