Identification of Nutrient Nitrogen in the Leaves of Soybean Plants Using ANFIS Based On Soybean Leave Colour. J. Electr. Eng. Comput. Sci. [Internet]. 2016 Dec. 30 [cited 2026 Mar. 16];1(2):119-23. Available from: https://ejournal.ubhara.ac.id/index.php/jeecs/article/view/173