Singh, R, YS Tariyal, and JS Chauhan. “Effects of Different Growth Regulators on Seed Germination and Vigor of Pot Marigold (Calendula Officinalis. L)”. SAARC Journal of Agriculture 18, no. 2 (January 4, 2021): 227–231. Accessed September 21, 2025. https://www.banglajol.info/index.php/SJA/article/view/51122.