102 Combinatorial Problems Autor Titu Andreescu et al. 29 oct 2002 Paperback Preț: 418.29 lei 503.97 lei 22-36 zile | 6-12 zile -17%
104 Number Theory Problems Autor Titu Andreescu et al. 19 dec 2006 Paperback Preț: 487.02 lei 572.97 lei 43-57 zile -15%
Geometric Problems on Maxima and Minima Autor Titu Andreescu et al. 8 dec 2005 Paperback Preț: 507.75 lei 22-36 zile