Posted on April 21, 2010PROBLEMS AND SOLUTIONS OF 39TH INPhO 2009 Theoretical problem one, answer, and answer form.Theoretical problem two, answer, and answer form.Theoretical problem three, answer, and answer form. read moreShare with FriendsWhatsAppFacebookGoogleTwitterLinkedInMorePinterestRedditTumblrEmailPrintSkypePocketLike this:Like Loading...