| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Ivan da Silva Guimarães Junior |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Georgi Davidov |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dimitar Dimitrov |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| José do Nascimento |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Dragomir Draganov |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Krasen Georgiev |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Georgi Ginchev |
|
1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| Marijan Grebencharski |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Georgi Kabakov |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Lyuboslav Lyubomirov |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Halbert Luis Moraes Baia |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mihael Pavlov |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Antonio Pequeno Frutuoso |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Marcello Ruda Neves Ramos da Costa |
|
1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Vladimir Valkov |
|
1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Martin Velikov |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Italy