Ritu Goswami. “IMPACT OF SULPHUR DIOXIDE (SO2) – AS A POLLUTANT ON THE GROWTH OF SUNFLOWER (Helianthus Annuus L. Cv. PAC-36)”. Journal Punjab Academy of Sciences 22 (December 31, 2022): 53–57. Accessed January 18, 2025. https://jpas.in/index.php/home/article/view/43.