Octavianto, Rio Duzan, Department of Mechanical Engineering, Faculty of Engineering, Universitas Mercu Buana (Indonesia)
Okfalisa, Okfalisa, Informatics Engineering Department, Universitas Islam Negeri Sultan Syarif Kasim Riau (Indonesia)
Okfalisa, Okfalisa, Department of Informatics, Universitas Islam Negeri Sultan Syarif Kasim (Indonesia)
Oktarina, Yurni, Department of Electrical Engineering, Politeknik Negeri Sriwijaya (Indonesia)
Oktauliah, Farah, Jurusan Teknik Elektro, Fakultas Teknik, Universitas Jember (Indonesia)
Oktavia, Tuti, Department of Civil Engineering, Faculty of Engineering, Universitas Mercu Buana (Indonesia)
Oktaviandri, Muchamad, Department of Mechanical Engineering, Universitas Pembangunan Nasional Veteran (Indonesia)
Oktiana, Maulisa, Department of Electrical and Computer Engineering, Universitas Syiah Kuala (Indonesia)
Oluyemi-Ayibiowu, Bamitale Dorcas, Department of Civil Engineering, Federal University of Technology Akure (Nigeria)
Omer, Abdeen Mustafa, Energy Research Institute (ERI) (United Kingdom)
Ontowirjo, Budianto, Department of Civil Engineering, Faculty of Engineering and Computer Science, Bakrie University (Indonesia)
Oyedeji, Ayodeji Nathaniel, Department of Industrial Engineering, Stellenbosch University (South Africa)