Sharma LM, Saxena L , eds. निरीक्षण या अवलोकन. In: शिक्षा में अनुसंधान पद्धति. 2023. Shodh Sagar International Publications; 2023:140-147. Accessed June 16, 2025. https://books.shodhsagar.org/index.php/books/catalog/book/70/chapter/392