Sarkar Samim & Kar Sutapa. (2021). General Science& Science And Technology Theory and Questions For UPSC,SPSC,CGL other (1st.). Mc Grow Hill Education (India).
Lua i Stíl Chicago (17ú heag.)Sarkar Samim agus Kar Sutapa. General Science& Science And Technology Theory and Questions For UPSC,SPSC,CGL Other. 1st. New Delhi: Mc Grow Hill Education (India), 2021.
Lua MLA (9ú heag.)Sarkar Samim agus Kar Sutapa. General Science& Science And Technology Theory and Questions For UPSC,SPSC,CGL Other. 1st. Mc Grow Hill Education (India), 2021.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.