GARGI SHARMA, et al. “RESPONSE OF AFRICAN MARIGOLD TO DIFFERENT LEVELS OF RESPONSE OF AFRICAN MARIGOLD TO DIFFERENT LEVELS OF NITROGEN, PHOSPHORUS AND POTASSIUM UNDER MID-HILL CONDITIONS OF HIMACHAL PRADESH”. The Bioscan, vol. 14, no. 3, Aug. 2019, pp. 219-24, https://thebioscan.com/index.php/pub/article/view/904.