Takashi Kojima

Books
Written on Water Written on Water
Written on Water
2011
Advanced Abacus Advanced Abacus
Advanced Abacus
2012
30 Mystery Investigation Masterpieces 30 Mystery Investigation Masterpieces
30 Mystery Investigation Masterpieces
2025
Japanese Abacus Use & Theory Japanese Abacus Use & Theory
Japanese Abacus Use & Theory
2012