Kia Kojoori, Reza, and Sepehr Sadegh Samiei. “Synthesis of Silver Nanoparticles Doped in the Zeolite Framework”. Asian Journal of Chemistry, vol. 24, no. 5, Jan. 2012, pp. 2342-4, https://asianpubs.org/index.php/ajchem/article/view/9016.