Ashok, D. et al. 2019. A Novel Method for Synthesis and their Antimicrobial Activity of 1H-Tetrazole Based Flavones and Flavanone Derivatives under Ultrasonic and Microwave Irradiation Methods. Asian Journal of Chemistry. 31, 7 (Jun. 2019), 1495–1500. DOI:https://doi.org/10.14233/ajchem.2019.21925.