University of Pennsylvania, English Language Programs
Assistant Director
Ohio University, Ohio Program of Intensive English
ESL Teacher
University of Tennessee at Martin
ESL Teacher
University of Illinois at Chicago
Professor Emeritus and On-going Researcher
University of Puerto Rico, Rio Piedras, English Department
Instructor
University of Pennsylvania
Lecturer
University of Illinois at Chicago
Professor, Dept of Linguistics, UIC
University of Pittsburgh
Ohio University
University of Pennsylvania
