Piano Educational. Studies. Sheet music. Yamaha Music Media #GTP01087977. Published by Yamaha Music Media (YM.GTP01087977).
ISBN 9784636879773.
Yoshiko Kurokawa's new proposal to children for getting piano technique. Hei He Hao Zi Guan Yu Shao Nian Er Tong Gai Ru He Xue Xi Gang Qin Dan Zou Ji Qiao De Xin Jian Yi .
