Karki BK, Amatya IM. A Comparative Study of Water Turbidity Removal Efficiency of Anthracite and Gravel in Roughing Filter. Jnl Innov. Engin. Educ. [Internet]. 2020 Mar. 31 [cited 2024 Nov. 21];3(1):42-9. Available from: https://nepjol.info./index.php/jiee/article/view/34323