SS P. (2016). BEGIN WITH SCIENCE - BOOK 4. SOM SUDHA PUBLICATION.
Lua i Stíl Chicago (17ú heag.)SS P. BEGIN WITH SCIENCE - BOOK 4. NEW DELHI: SOM SUDHA PUBLICATION, 2016.
Lua MLA (9ú heag.)SS P. BEGIN WITH SCIENCE - BOOK 4. SOM SUDHA PUBLICATION, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.