Yuka Ota
Thielbar Melinda:
#3 the Secret Ghost: A Mystery with Distance and Measurement
Manga Math Mysteries
Illustrator: Yuka Ota
Graphic Universe , 2009
Hardcover
Thielbar Melinda:
#4 the Kung Fu Puzzle: A Mystery with Time and Temperature
Manga Math Mysteries
Illustrator: Yuka Ota
Graphic Universe , 2009
Hardcover


