Oka, Nobuto, Kindai University (Japan)
Okmayura, Finanta, Universitas Riau (Indonesia)
Oktaviani, Fani Rahma, Adhirajasa Reswara Sanjaya University (Indonesia)
Oktian, Yustus Eko, Universitas Ciputra Surabaya (Indonesia)
Olanipekun, Ayorinde
Olanipekun, Ayorinde, Department of Engineering Management, Faculty of Engineering and the Built Environment, University of Johannesburg, South Africa
Olanipekun, Ayorinde Tayo, University of Johannesburg (South Africa)
Ondyrbayev, Nurbolat, Almaty University of Power Engineering and Telecommunications named after G. Daukeev (Kazakhstan)
Onn, Choo Wou
Onputtha, Suraporn, Rajamangala University of Technology Thanyaburi (Thailand)
Onputtha, Suraporn, Faculty of Business Administration, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand
Orebi, Shaima Mahdi, University of Thi Qar /College of Computer Science and Mathematics (Iraq)

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