The previous page is sending you to https://www.semanticscholar.org/paper/A-2-Arylbenzofuran-Derivative-from-Hopea-Mengarawan-Juliawaty-Sahidin/3a2c10005ccb4a196769f8d25df5179b44092e21.

 If you do not want to visit that page, you can return to the previous page.