Mathematical Problem Solving

Problems in Mathematical Analysis by B.P. Demidovich (1977 Rare Soviet Edition)

Mathematical Problem Posing: Conceptual Considerations and Empirical Investi...

Mathematical Problem Posing: Conceptual by Lukas Baumanns PAPERBACK

William Lowell Putnam Mathematical Competition Problems and Solutions: 1938-1964

Mathematical Problem Posing, , Paperback

Problems in Mathematical Analysis (G. Baranenkov, B. Demidovich, 1970)

The Great Courses: Art & Craft of Mathematical Problem Solving Part 2 Paperback