S. . Singh and S. . Singh, “An Analysis of the Activity of Science Textbook with reference to Science Process Skills”, jie, vol. 45, no. 2, pp. p. 91–103, Aug. 2019, Accessed: Apr. 24, 2025. [Online]. Available: http://14.139.250.109:8090/index.php/jie/article/view/2628