Ghatak Ajoy. Optics (7th.). McGrawHill.
Lua i Stíl Chicago (17ú heag.)Ghatak Ajoy. Optics. 7th. Chennai: McGrawHill.
Lua MLA (9ú heag.)Ghatak Ajoy. Optics. 7th. McGrawHill.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.