Prajapati, Kiran, and Anuradha Varshney. 2011. “P-Nitrobenzyl Triphenyl Phosphonium Ylide As New Initiator in Polymerization of Ethylacrylate”. Asian Journal of Chemistry 23 (6):2361-68. https://asianpubs.org/index.php/ajchem/article/view/10465.