The Grapes of Math Scholastic Bookshelf Autor Greg Tang et al. 31 mai 2004 Paperback Preț: 47.43 lei 3-5 săpt.
Math-Terpieces: The Art of Problem-Solving Autor Greg Tang et al. 30 iun 2003 Hardback Preț: 105.84 lei 3-5 săpt.