Syarifudin, Muhammad, Faculty of Social and Political Sciences, Hang Tuah University Surabaya, Indonesia.
Sylvanus, Udoh Francis , Department of Business Administration, Nile University of Nigeria, Abuja, Nigeria.
Sylvanus, UDOH, Francis, Department of Business Administration Nasarawa State University, Keffi, Nigeria.
Syzdykbayeva, Aigul , Kazakh National Women Teacher Training University, Almaty, Kazakhstan.
Syzdykov, Zhanat, Kimep University Kazakhstan, Kazakhstan