K.C., Kishor, et al. “Evaluation of Growth and Yield Performance of Broccoli (Brassica Oleracea Var. Italica L.) under Conventional Urea, Nano Urea and Azotobacter Biofertilizer”. Archives of Agriculture and Environmental Science, vol. 10, no. 4, Dec. 2025, pp. 658-63, doi:10.26832/24566632.2025.1004014.