Professor or Management, Claremont Graduate University, Drucker School of Managment

Professor, City and Regional Planning, Cal Poly State University San Luis Obispo

Professor of Sociolinguistics and Linguistic Anthropology, Sorbonne Nouvelle

Maria Curie-Sklodowska University, Lublin, Poland

University of Oklahoma

Doctor of Environmental Sciences, Warsaw University of Life Sciences

professor, Silesian University of Technology

Doctor of Environmental Sciences, Warsaw University of Life Sciences

Professor of Linguistics ,Retired Dept of LInguistics, University of Lucknow, Lucknow, India

PhD student at Institute of Sociology, University of Wroclaw