S R Kumawat, S K Kumawat, B L Yadav,. “Response of Fennel (Foeniculum Vulgare Mill.) to Phosphorus and Zinc Fertilization in a Loamy Sand Soil”. Journal of Spices and Aromatic Crops 24, no. 1 (June 23, 2015): 23–27. Accessed October 5, 2025. https://www.updatepublishing.com/journal/index.php/josac/article/view/5120.