MAHESH, S. (2016). I DID IT MATHEMATICS - REVISIED EDITION - BOOK 4. CAMBRIDGE UNIVERSITY PRESS.
Chicago-čujuhus (17. p.)MAHESH, SUDHA. I DID IT MATHEMATICS - REVISIED EDITION - BOOK 4. DELHI: CAMBRIDGE UNIVERSITY PRESS, 2016.
MLA-čujuhus (9. p.)MAHESH, SUDHA. I DID IT MATHEMATICS - REVISIED EDITION - BOOK 4. CAMBRIDGE UNIVERSITY PRESS, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.