RATNA SAGAR. (2017). NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. RATNA SAGAR.
Chicago-čujuhus (17. p.)RATNA SAGAR. NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. NEW DELHI: RATNA SAGAR, 2017.
MLA-čujuhus (9. p.)RATNA SAGAR. NUMBER MAGIC COMPANION - AN ACTVITY BASED COURSE IN MATHEMATICS - BOOK 2. RATNA SAGAR, 2017.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.