“SIMPLE ONE-STEP SYNTHESES OF HETEROCYCLIC SYSTEMS FROM 2-PHENYL-4- THIENYLMETHYLIDENE-5(4H)-OXAZOLONE”, Pakistan Journal of Scientific & Industrial Research, vol. 46, no. 2, pp. 81–87, Apr. 2003, Accessed: Mar. 10, 2026. [Online]. Available: https://www.v2.pjsir.org/index.php/biological-sciences/article/view/1599