Business and Economics Professors

PSC’s Business instructors bring to the classroom real-world business experience and excellent teaching credentials.

Joseph E. Berlinski (Chair)

Professor, Business
Certified Public Accountant (C.P.A.)
Certified Information Systems Auditor (C.I.S.A.)
B.A. Northern Illinois University
M.B.A. DePaul University
email: jberlinski@prairiestate.edu
phone: (708) 709-3565
office: Room 2211


Marci Schusler

Professor, Business
B.S. University of Illinois at Champaign/Urbana
M.B.A. St. Xavier University
M.O.T Certified Master Online Teacher
email: mschusler@prairiestate.edu
phone: (708) 709-7806
office: Room 2202


Donna Sum

Professor, Business
Certified Public Accountant (C.P.A.)
B.S. Bradley University
M.S. Purdue University
email: dsum@prairiestate.edu
phone: (708) 709-3687
office: Room 2213


Abdullah Tinwala

Professor, Business/Economics
B.A. Roosevelt University
M.B.A. Idaho State University
email: atinwala@prairiestate.edu
phone: (708) 709-3597
office: Room 2203