Professor, Arabic & Translation Studies, CAS, American University of Sharjah, UAE

School of Education, University of Michigan

Nanyang Technological University, National Institute of Education

Professor of Applied Linguistics/TESOL, University of Auckland

University of Hawai'i, Dept. of Second Language Studies

Assistant Professor of English Teacher Education at Universitas Teknokrat Indonesia

University of Western Ontario

Universitas Sains dan Teknologi Jayapura

Professor, University of Pennsylvania Graduate School of

Lecturer of Linguistics