Maharashtra State Board. (2010). Towards sustainable development: Environment education. Std. XII, 2010. Maharashtra State Secondary & Higher Secondary Board.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Maharashtra State Board. Towards Sustainable Development: Environment Education. Std. XII, 2010. Navi Mumbai: Maharashtra State Secondary & Higher Secondary Board, 2010.
MLA -ийн эшлэл (9 дэх хэвлэлт)Maharashtra State Board. Towards Sustainable Development: Environment Education. Std. XII, 2010. Maharashtra State Secondary & Higher Secondary Board, 2010.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.