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If this is your first semester or you are a student not near completion of a degree program leading to a teaching certification or an advanced program for teachers at USI, you must purchase Tk20.  You may purchase Tk20 through the USI Bookstore or from the Tk20 website.

USI’s Bookstore Information:
Tk20 may be purchased at the USI Bookstore, but please note that the price may be higher at the book store. Purchasing through the USI Bookstore will allow students to get requisite compensation from financial aid, if eligible. Please contact bookstore concerning cost of Tk20 purchase

Pay NowTk20 Direct Purchase information:
Tk20 may be purchased from USI’s Tk20 site. The cost when purchased from the site will be $100.00. USI’s Tk20 site is a secure website. You may use Visa or MasterCard USI’s Tk20 website address is or you may use the Tk20 Pay Now button for direct access.

Cashier’s Check/Money Order Direct Purchase Information:
You may also pay by mail via a cashier’s check or money order. The cost for Tk20 will be $100.00. Details can be found at or you may use the Tk20 Pay Now button for direct access.

Student subscriptions will be effective for seven years from the date of purchase.


It is the policy of the University of Southern Indiana to be in full compliance with all federal and state nondiscrimination and Equal Opportunity laws, orders, and regulations relating to race, sex, religion, handicap, age, national origin, sexual orientation, or veteran status, Questions or concerns should be directed to the Affirmative Action officer, USI Human Resources Dept., Orr Center Room# 012, University of Southern Indiana, 8600 University Boulevard, Evansville, IN 47712 (Telephone: 812/464-1815). Office hours are 8:00 a.m. – 4:30 p.m. Monday-Friday.