Bamoniri, A., A. Pourali, and S. Nazifi. “Facile Synthesis of 1-Naphthol Azo Dyes With Nano SiO<sub>2</sub>/HIO<sub>4</sub> Under Solvent-Free Conditions”. Bulletin of the Chemical Society of Ethiopia, vol. 27, no. 3, Sept. 2013, pp. 439-45, doi:10.4314/bcse.v27i3.13.