Kanji & Kana - A Handbook of the Japanse Writing System , Wolfgang Hadamitzky & Mark Spahn, 4
th
printing, Tuttle Publishing, ISBN 0-8048-2077-5
Remembering the Kana, James W. Heisig, 2
nd Edition, 2nd
printing 2005, Japanese Publications Trading Co, Ltd, ISBN 4-88996-072-4
Oxford Japanese Minidictionary,
ed. Jonathan Bunt and Gillian Hall, 5th
printing 2001, Oxford University Press, ISBN 0-19-860366-5
Easy Kanji - A Basic Guide to Writing Japanese Characters, Fujihiko Keneda, 1
st
Edition 1996, Passport Books (McGraw-Hill imprint) , ISBN 0-8442-8374-6