Bashyal, R. “Synthesis of Nanoparticles of Poly (ethyleneimine) and Their Characterization by Transmission Electron Microscopy, Thin Layer Chromatography, and Infrared Spectroscopy”. Journal of Agriculture and Forestry University 5, no. 1 (December 16, 2022): 293–298. Accessed May 5, 2024. https://www.nepjol.info/index.php/jafu/article/view/48477.