SAMMAIAH, G., & SARANGAPANI, M. (2010). Synthesis and Biological Activity of Phenyl Amino Acetic Acid (2-Oxo-1,2-dihydroindol-3-ylidene)hydrazides. Asian Journal of Chemistry, 20(1), 75–80. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/19353