Katuwal, Tek Bahadur. “Comparative Evaluation of Concrete Flexural Strength of River Bed and Crusher Run Coarse Aggregate in Pokhara Valley”. Journal of Innovations in Engineering Education 2, no. 1 (April 27, 2021). Accessed October 17, 2021. https://www.nepjol.info/index.php/jiee/article/view/36679.