Kokh Richard ยท R.K.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The 80/20 Principle: The Secret of Achieving More with Less | 978-5-699-51703-9 (5-699-51703-0) | 2019 |
| Uspeh po printsipu 80/20. Kak postroit kareru i biznes, ispolzuya vashi luchshie 20% | 978-5-699-81070-3 (5-699-81070-6) | 2019 |