لینکدونی
- Some open source Journals
- Stephen P. Boyd – Books
- amsco's books free
- Free Textbooks in Mathematics
- e-booksdirectory
- emathzone
- free math books
- Encyclopaedia of Mathematics
- Gallier's books
- The Trillia Group
- ck12 mathematics
- E-Books Directory
- Every Thing Maths
- bookboon
- math.stackexchange
- The Electronic Library of Mathematics
- HINDAWI open access
- Hikari Ltd publisher
- bookos
- buy-oem-Download
- EPT.IAU
- End Note 4
- download paper
- Planet Math
- Analysis WebNotes
- kreiszing
- mathematic87
- Library pw
پرشین گیگ؛ سرویسهای رایگان وب برای فارسی زبانان - www.persiangig.com
