Adhikari, Ganesh Prasad. “Conceptual Understanding of Definite Integral: An Experimental Study Using Geo-Gebra at University Level”. Butwal Campus Journal 4, no. 1-2 (December 31, 2021): 89–102. Accessed December 12, 2024. https://nepjol.info./index.php/bcj/article/view/45009.