Rahul Shankarrao Patil, Ankush V. Mali & Shivaji H. Burungale. Study on Synthesis of 1,8-Dioxooctahydroxanthene by Silica Supported Orthophosphoric Acid (H\(_3\)PO\(_4\)•SiO\(_2\) . CACS-V5 2021, 32-44.