Elagbar, Z. (1999). Synthesis of N-Substituted indoxyls and pharmacological screening of 3-acetoxy N-methylinole-2-carboxylic acid. Al-Balqa Journal for Research and Studies, 6(2), 23-31. https://ajrs.ammanu.edu.jo/ojs/index.php/albalqajournal/article/view/487