What does OPF stand for?
OPF stands for "Occasional Proportional Feedback"
How to abbreviate "Occasional Proportional Feedback"?
"Occasional Proportional Feedback" can be abbreviated as OPF
What is the meaning of OPF abbreviation?
The meaning of OPF abbreviation is "Occasional Proportional Feedback"
What does OPF mean?
OPF as abbreviation means "Occasional Proportional Feedback"
