LOGIC VOL. 5 - UPC 778781002451

MATHEMATICS VOL. 6 - UPC 778781002468

SCIENCE VOL. 7 - UPC 778781002475

HISTORY, GEOGRAPHY & FOREIGN LANGUAGES  vol. 4 - UPC 778781002444

MUSIC & HOBBIES VOL. 2 - UPC 778781002420

RECESS GAMES VOL. 3 - UPC 778781002437