JAGGI, R.C., SHARMA, R.K. and GUPTA, S. (2011) “Comparative response of onion (Allium cepa) to two sources of sulphur”, The Indian Journal of Agricultural Sciences, 76(3). Available at: https://epubs.icar.org.in/index.php/IJAgS/article/view/2621 (Accessed: 24 July 2026).