| PERRL | Pilot Emission Reductions Removals And Learnings 
| Others |
| PERRL | Pilot Emission Removals Reductions And Learning
| Others |
| PERRL | Pilot Emission Removals Reductions And Learnings
| Others |
| PERRL | Pilot Emission Removals Reductions Learnings
| Others |
| PERRL | Pilot Emissions Reductions Removals And Learnings
| Others |
| PERRL | Pilot Emissions Removals Reductions And Learnings
| Others |
| PERRL | Pupils equally round and reactive to light
| Others |