S.S. Dhaliwal, M.K. Dhaliwal. “Impact of Manure and Fertilizers on Chemical Fractions of Zn and Cu in Soil under Rice-Wheat Cropping System”. Journal of the Indian Society of Soil Science 67, no. 1 (June 6, 2019). Accessed June 6, 2026. https://epubs.icar.org.in/index.php/JISSS/article/view/90485.