Pirani, F. (2000). Mengenal Alam Semesta For Beginners. Mizan.
Lua i Stíl Chicago (17ú heag.)Pirani, Felix. Mengenal Alam Semesta For Beginners. Mizan, 2000.
Lua MLA (8ú heag.)Pirani, Felix. Mengenal Alam Semesta For Beginners. Mizan, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.