“Effect of Mycorrhizal Inoculation (VAM) and Phosphorus Levels on Growth and Yield Attributes of Sunflower”. Global Journal of Science Frontier Research 18, no. D4 (March 15, 2018): 7–11. Accessed April 9, 2026. https://journalofscience.org/index.php/GJSFR/article/view/2271.