Vyjanthimala, B. (1997). EKSPLORASI SAINS JILID 2. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Vyjanthimala, Balakhrisna. EKSPLORASI SAINS JILID 2. Oxford University Press, 1997.
Lua MLA (8ú heag.)Vyjanthimala, Balakhrisna. EKSPLORASI SAINS JILID 2. Oxford University Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.