Hasan, Aurangzeb, E.U. Mughal, and A. Sadiq. 2012. “Structure Activity Relationship Studies of Some Potent Antifungal Flavones, 4-Thioflavones and 4-Iminoflavones”. Asian Journal of Chemistry 24 (10):4361-64. https://asianpubs.org/index.php/ajchem/article/view/9654.