SS P. (2016). BEGIN WITH SCIENCE - BOOK 4. SOM SUDHA PUBLICATION.
Chicago-čujuhus (17. p.)SS P. BEGIN WITH SCIENCE - BOOK 4. NEW DELHI: SOM SUDHA PUBLICATION, 2016.
MLA-čujuhus (9. p.)SS P. BEGIN WITH SCIENCE - BOOK 4. SOM SUDHA PUBLICATION, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.