Soal Jawab Olimpiade Asia Pasifik (APMO)
Liga Matematika Amerika dan Kanada
The USA Mathematical Talent Search (USAMTS)
Koleksi Soal AMC, AIME, MOSP, IMO
Olimpiade New Zealand
AIMS ( Activities Integrating Math & Science)
AMS (American Mathematical Society)
EMS (European Mathematical Society)
SIAM (Society for Industrial and Applied Mathematics)
MAA (Mathematical Association of America)
GAMS (Guide to Available Mathematical Software)
Links Problem solving:
http://www.geocities.com/CapeCanaveral/Lab/4661/
http://www.mathlinks.ro/Forum/portal.php
http://www.math.kth.se/%7Eshapiro/problem.html
http://www.artofproblemsolving.com/
http://www.kalva.demon.co.uk
