Ryan Anugrah Putra, Akhlisa Nadiantya Aji Nugroho, Aditya Ramadhona, and Erick Wisnu Kuncoro Baroto. 2020. “Gas-Liquid Flow in a Vertical Pipe Equipped With a Double Helical Swirl Separator Element”. Jurnal Inotera 5 (2). Indonesia, Jakarta, 92-99. https://doi.org/10.31572/inotera.Vol5.Iss2.2020.ID110.