John Stillwell-Numerele reale-An Introduction to Set Theory and Analysis ( PDFDrive ).pdf B. P. Demidovich Problems in mathematical analysis .pdf A.Barbulescu si colectiv -800-de-exercitii-si-probleme-pentru-clasa-a-3-a.pdf A. Barbulescu si colectiv-770-de-exercitii-si-probleme-pentru-clasa-a-4-a.pdf 
