Singhal RM, Kumar P. Electrophoretic Fractionation of the Soil Humic Acids of Chakrata Himalayas (U.P.). Indian Forester [Internet]. 1994 Mar. 1 [cited 2025 Dec. 4];120(3):262-7. Available from: http://indianforester.co.in/index.php/indianforester/article/view/7553