P.P. ยท Piatak Piotr
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Matematika. Proveriaem gotovnost' k shkole 6 - 7 let | 978-5-699-53969-7 (5-699-53969-7) | 2012 |
| Rech i pismo Proveryaem gotovnost k shkole Dlya detey 6 7 let | 978-5-699-53970-3 (5-699-53970-0) | 2012 |
| Uchim zvuki i bukvy: dlia detei 4 - 5 let | 978-5-699-47807-1 (5-699-47807-8) | 2012 |