What does TSIS stand for?
TSIS stands for "Testing Sign-In System"
How to abbreviate "Testing Sign-In System"?
"Testing Sign-In System" can be abbreviated as TSIS
What is the meaning of TSIS abbreviation?
The meaning of TSIS abbreviation is "Testing Sign-In System"
What does TSIS mean?
TSIS as abbreviation means "Testing Sign-In System"
