by Helmy, Qomarudin, Kardena, Edwan
Published in Case studies in chemical and environmental engineering (01.06.2024)

by Musthofa, Akhmad Masykur Hadi, Syafila, Mindriany, Helmy, Qomarudin
Published in Indonesian journal of chemistry (01.04.2023)

by Rahman, Danar Arifka, Syafila, Mindriany, Helmy, Qomarudin
Published in Indonesian journal of chemistry (01.02.2024)

by Lisafitri, Yuni, Kardena, Edwan, Helmy, Qomarudin
Published in E3S web of conferences (01.01.2024)

by Rahman, Danar Arifka, Helmy, Qomarudin, Syafila, Mindriany, Gumilar, Andri
Published in Jurnal Presipitasi (30.07.2022)

by Wantoputri, Noviani Ima, Helmy, Qomarudin, Notodarmojo, Suprihanto
Published in Jurnal Presipitasi (31.03.2021)

by Fitriyani, Lely, Kardena, Edwan, Sukandar, Helmy, Qomarudin
Published in Daehan hwan'gyeong gonghag hoeji (01.02.2021)

by Dinasakti Nurul Mentari, Okti, Helmy, Qomarudin, Kardena, Edwan
Published in E3S web of conferences (01.01.2020)

by Suryawan, I Wayan Koko, Septiariva, Iva Yenis, Helmy, Qomarudin, Notodarmojo, Suprihanto, Wulandari, Marita, Sari, Novi Kartika, Sarwono, Ariyanti, Pratiwi, Riska, Lim, Jun-Wei
Published in International Journal of Technology (01.10.2021)

by Kusumadewi, Riana Ayu, Notodarmodjo, Suprihanto, Helmy, Qomarudin
Published in MATEC Web of Conferences (01.01.2018)

by Yenis Septiariva, Iva, Padmi, Tri, Damanhuri, Enri, Helmy, Qomarudin
Published in MATEC Web of Conferences (2019)

by Aghasa, Aghasa, Helmy, Qomarudin, Chaerul, Mochammad
Published in Reaktor (Semarang, Indonesia) (31.05.2017)

by Arifianingsih, Nur Novilina, Zevi, Yuniati, Helmy, Qomarudin, Notodarmojo, Suprihanto, Fujita, Hirofumi, Shimayama, Yoshinobu, Kirihara, Masao
Published in E3S web of conferences (01.01.2020)

by Surya Ramadan, Bimastyaji, Jatnika Effendi, Agus, Helmy, Qomarudin
Published in E3S web of conferences (01.01.2018)

by Helmy, Qomarudin, Kardena, Edwan
Published in Journal of petroleum & environmental biotechnology (01.01.2015)

by Helmy, Qomarudin, Notodarmojo, Suprihanto
Published in IOP conference series. Materials Science and Engineering (01.09.2019)

by Mindriany Syafila, Qomarudin Helmy, Akhmad Masykur Hadi Musthofa
Published in Jurnal Presipitasi (01.11.2022)

by W, RudyLaksmono, Helmy, Qomarudin
Published in International journal of advanced research (Indore) (28.02.2017)

by Helmy, Qomarudin, Laksmono, Rudy, Kardena, Edwan
Published in Procedia chemistry (2015)

by Hidayat, Syarif, Aghnia, Dini Widyani, Kardena, Edwan, Helmy, Qomarudin
Published in Jurnal presipitasi (30.11.2020)