KUMAR, P. MATHS OLYMPIAD INTERNATIONAL MATHEMATICS OLYMPIAD- 7. V & S PUBLISHER.
Chicago-čujuhus (17. p.)KUMAR, PRASOON. MATHS OLYMPIAD INTERNATIONAL MATHEMATICS OLYMPIAD- 7. NEW DELHI: V & S PUBLISHER.
MLA-čujuhus (9. p.)KUMAR, PRASOON. MATHS OLYMPIAD INTERNATIONAL MATHEMATICS OLYMPIAD- 7. V & S PUBLISHER.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.