אתגר הנינג'ה
Subtitle: התחרות מתחילה
Series: Yediʻot sefarim
Publisher: Yediʻot aḥaronot; Sifre Ḥemed
Published: 2018
Place of publication: Rishon le-Tsiyon
Language: heb
Number of pages: 127
ISBN-13: 9789655681444
Subjects: Sports; Competitions; Juvenile fiction
Other titles: Etgar ha-ning'ah
Work titles: Junior Ninja champion