year of publication | ISBN | author(s) | title |
---|---|---|---|
2014 | 978-1-941589-00-7 | SAI Speed Math Academy | Abacus Mind Math Instruction Book Level 1: Step by Step Guide to Excel at Mind Math with Soroban, a Japanese Abacus (Volume 1) |
'' | 978-1-941589-01-4 | SAI Speed Math Academy | Abacus Mind Math Level 1 Workbook 1 of 2: Excel at Mind Math with Soroban, a Japanese Abacus |