| parliamentary system vs presidential system | 1.44 | 0.7 | 8628 | 43 | 63 |
| parliamentary system and presidential system | 1.7 | 0.1 | 5361 | 44 | 27 |
| presidential system vs parliamentary sys | 0.2 | 0.8 | 6950 | 40 | 54 |
| parliamentary vs presidential system chart | 0.19 | 1 | 1416 | 42 | 12 |
| parliamentary system vs us system | 1.38 | 0.6 | 1937 | 33 | 62 |
| presidential vs parliamentary government | 0.21 | 0.4 | 3223 | 40 | 56 |
| presidential and parliamentary systems | 0.45 | 0.8 | 2713 | 38 | 71 |
| differences in presidential vs parliamentary | 1.21 | 0.4 | 4957 | 44 | 12 |
| parliamentary versus presidential government | 1.49 | 1 | 483 | 44 | 42 |
| differences in parliamentary and presidential | 1.01 | 0.7 | 488 | 45 | 43 |
