Khadka UR, Ramanathan AL. Depthwise variation of carbon, nitrogen and biogenic silica in sediment from lakes of Pokhara Valley, Nepal. Nep J Environ Sci [Internet]. 2013 Dec. 9 [cited 2024 Dec. 26];1(1):40-7. Available from: https://nepjol.info/index.php/njes/article/view/36547