Octavianto, Rio Duzan, Department of Mechanical Engineering, Faculty of Engineering, Universitas Mercu Buana (Indonesia)
Okfalisa, Okfalisa, Department of Informatics, Universitas Islam Negeri Sultan Syarif Kasim (Indonesia)
Okfalisa, Okfalisa, Informatics Engineering Department, Universitas Islam Negeri Sultan Syarif Kasim Riau (Indonesia)
Oktarina, Yurni, Department of Electrical Engineering, Politeknik Negeri Sriwijaya (Indonesia)
Oktauliah, Farah, Jurusan Teknik Elektro, Fakultas Teknik, Universitas Jember (Indonesia)
Omer, Abdeen Mustafa, Energy Research Institute (ERI) (United Kingdom)
Oyedeji, Ayodeji Nathaniel, Department of Industrial Engineering, Stellenbosch University (South Africa)