Tiwari, G. N., & Mishra, R. K. Advanced renewable energy sources.
Lua i Stíl Chicago (17ú heag.)Tiwari, Gopal N., agus Rajeev K. Mishra. Advanced Renewable Energy Sources.
Lua MLA (8ú heag.)Tiwari, Gopal N., agus Rajeev K. Mishra. Advanced Renewable Energy Sources.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.