Ровинский, Н.Н. Финансовая система СССР / Н.Н. Ровинский. — М.: Госфиниздат, 1952. — 166 с. — Свободный доступ из сети Интернет (чтение). — <URL:http://lp-library/Book/TRUDY FA/Rovinsky.pdf>. — <URL:http://elib.fa.ru/oldbook/Rovinskij.pdf>.
| Period | Read | Copy | Open | Total | ||
|---|---|---|---|---|---|---|
| Year 2021 | Quarter 3 | 11 | 0 | 0 | 0 | 11 |
| Quarter 4 | 14 | 0 | 0 | 0 | 14 | |
| Year 2022 | Quarter 1 | 4 | 0 | 0 | 0 | 4 |
| Quarter 2 | 5 | 0 | 0 | 0 | 5 | |
| Quarter 3 | 14 | 0 | 0 | 0 | 14 | |
| Quarter 4 | 17 | 0 | 0 | 0 | 17 | |
| Year 2023 | Quarter 1 | 7 | 0 | 0 | 0 | 7 |
| Quarter 2 | 6 | 0 | 0 | 0 | 6 | |
| Quarter 3 | 9 | 0 | 0 | 0 | 9 | |
| Quarter 4 | 14 | 0 | 0 | 0 | 14 | |
| Year 2024 | Quarter 1 | 6 | 0 | 0 | 0 | 6 |
| Quarter 2 | 19 | 0 | 0 | 0 | 19 | |
| Quarter 3 | 28 | 0 | 0 | 0 | 28 | |
| Quarter 4 | 36 | 0 | 0 | 0 | 36 | |
| Year 2025 | Quarter 1 | 31 | 0 | 0 | 0 | 31 |
| Quarter 2 | 32 | 0 | 0 | 0 | 32 | |
| Quarter 3 | 54 | 0 | 0 | 0 | 54 | |
| Quarter 4 | 66 | 0 | 0 | 0 | 66 | |
| Year 2026 | Quarter 1 | 61 | 0 | 0 | 0 | 61 |
| Total | 434 | 0 | 0 | 0 | 434 | |