What does PTR stand for?
PTR stands for "Pupil Teacher Ratio"
How to abbreviate "Pupil Teacher Ratio"?
"Pupil Teacher Ratio" can be abbreviated as PTR
What is the meaning of PTR abbreviation?
The meaning of PTR abbreviation is "Pupil Teacher Ratio"
What does PTR mean?
PTR as abbreviation means "Pupil Teacher Ratio"
