Παπακωστόπουλος (Spyros Papakostopoulos), Σπύρος, Πανεπιστήμιο Πατρών, Greece
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Research in Mathematics Education No. 5 (2010): Research in Mathematics Education - Articles
Difficulties of secondary students in solving inequations of 1st degree
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- Online ISSN: 2585-2272
- Print ISSN: 1791-292X