Perkasa AY, Utomo U, Widiatmoko T. Effect of Various Levels of NPK Fertilizer on the Yield Attributes of Soybean (Glycine max L.) Varieties. JTCS [Internet]. 2016 Feb. 1 [cited 2024 Dec. 9];3(1):7-12. Available from: https://j-tropical-crops.com/index.php/agro/article/view/75