[1]
S. . Singh, “A Critical Appraisal of General Science Content of Class VII Textbooks”, IER, vol. 48, no. 1, pp. p. 30–55, Jan. 2011, Accessed: Oct. 06, 2025. [Online]. Available: https://ejournals.ncert.gov.in/index.php/ier/article/view/2338